EXHIBIT 3.11

                           ARTICLES OF ORGANIZATION
                                      OF
                  DIALYSIS SPECIALISTS OF SOUTH TEXAS, L.L.C
                  ------------------------------------------

                                  ARTICLE ONE

     The name of the limited liability company is

                  DIALYSIS SPECIALISTS OF SOUTH TEXAS, L.L.C

                                  ARTICLE TWO

     The period of duration of the Company shall be perpetual or until the 
termination of the Company in accordance with regulations of the Company.

                                 ARTICLE THREE

     The purpose for which the Company is organized is the transaction of any 
and all lawful business for which limited liability companies may be organized 
under the Texas Limited Liability Company Act.

                                 ARTICLE FOUR

     The registered agent of the Limited Liability Company is CT Corporation 
System and the address of its registered office in the State is c/o CT
Corporation System, 350 N. St. Paul Street, Dallas, Texas 75201.

                                 ARTICLE FIVE

     The names and addresses of the members are as follows:

          Name                          Address
          ----                          -------  

       Martin Fox                  6300, E. El Dorado Plaza, Suite 100
                                   Tucson, Arizona 85715

       Thomas Creel                1113 Furlong Drive,
                                   Libertyville, Illinois 60048

     The management of the Company will be vested in the members, the Company 
will not have managers.

                                  ARTICLE SIX

     The name and addressee of the organizer is as follows:

          Name                          Address
          ----                          -------
     
       Kimberley E. Bender              150 North Michigan Avenue   
                                        Suite 3100
                                        Chicago, IL 60601

     IN WITNESS WHEREOF, I have hereunto set my hand this 23rd day of May, 1995.


                                                         /s/ Kimberley E. Bender
                                                         -----------------------


 
                            ARTICLES OF CORRECTION

The undersigned submits these articles pursuant to Texas Civil Statutes article 
1302701 to correct a document which is an inaccurate record of the entry action,
contains an inaccurate or erroneous statement, or was defectively or erroneously
executed, sealed acknowledged, or verified.

                                  ARTICLE ONE

The name of the entity is Dialysis Specialists of South Texas, L.L.C.

                                  ARTICLE TWO

The document to be corrected is the Articles of Organization which was filed in 
the Office of the Secretary of State on the 24th day of May, 1995.

                                 ARTICLE THREE

The inaccuracy, error, or defect to be corrected is:

Article five incorrectly lists only 2 members, wherein 3 members should have 
been listed at the time of organization.


                                 ARTICLE FOUR

As corrected, the inaccurate, erroneous, or defective portion of the document 
reads as follows:

                          See attached
                          
                          
                                     By: /s/ Martin Fox
                                         ----------------------------------.
                                         Martin Fox
                          
                                Its Member
                                    ---------------------------------------.
                                     An Authorized Corporate Officer or Director
                                                     or 
                                    Limited Liability Company Member or Manager

                                Forms Articles of Correction for Corporate 
                                and Limited Liability Companies


 
          Attachment A to Article Four of the Statement of Correction
          -----------------------------------------------------------

As corrected, the inaccurate, erroneous, or defective portion of the document 
reads as follows:


                                 ARTICLE FIVE

The names and addresses of the members are as follows:

                    Name                          Address
                    ----                          -------

                    Martin Fox        6300 E. El Dorado Plaza, Suite 100
                                      Tucson, Arizona 85715

                    Thomas Creel      1113 Furlong Drive 
                                      Libertyville, Illinois 60048

                    William Shaffer   1521 S. Staples, Suite 401
                                      Corpus Christi, Texas 78404


 
                             ARTICLES OF AMENDMENT
                                    TO THE
                           ARTICLES OF ORGANIZATION
                                      OF 
                  DIALYSIS SPECIALISTS OF SOUTH TEXAS, L.L.C.
                  -------------------------------------------

          Pursuant to the provisions of Article 3.06 of the Texas Limited
Liability Company Act (the "Act"), the undersigned company adopts the following
Articles of Amendment to its Articles of Organization:


                                   ARTICLE I


The name of the limited liability company is:

          DIALYSIS SPECIALISTS OF SOUTH TEXAS, L.L.C.


                                  ARTICLE II

ARTICLE FIVE of the Articles of Organization is hereby amended so as to read as 
follows:

          The names and addresses of the members are as follows:

          Name                                        Address
          ----                                        -------
                                                      
          HOME DIALYSIS OF AMERICA, INC.              6300 E. E1 Dorado Plaza
                                                      Suite 100
                                                      Tucson, AZ 85715
                                                      
          William L. Shaffer, M.D.                    1521 S. Staples
                                                      Suite 401
                                                      Corpus Christi, TX 78404


                                  ARTICLE III

The amendment to the Articles of Organization set forth in Article II above was 
approved and adopted by the members of the company pursuant Section D of Article
2.23 of the Act on July 1, 1995.

Dated:    March 20, 1996.

                                             DIALYSIS SPECIALISTS OF
                                             SOUTH TEXAS, L.L.C.

                                        By:  HOME DIALYSIS OF AMERICA, INC.

                                        By:  /s/ Martin Fox
                                             -----------------------------------
                                        Its: President


 
OFFICE OF THE                      [SEAL]                   CORPORATIONS SECTION
SECRETARY OF STATE                                                P.O. Box 13697
                                                        Austin, Texas 78711-3697


                  STATEMENT OF CHANGE OF REGISTERED OFFICE OR
                   REGISTERED AGENT OR BOTH BY A CORPORATION
               LIMITED LIABILITY COMPANY OR LIMITED PARTNERSHIP

1.   The name of the entity is Dialysis Specialists of South Texas, L.L.C.
     The entity's charter/certificate of authority/file number is 07012084.

2.   The registered office address as PRESENTLY shown in the records of the 
     Texas secretary of state is: 350 N. St. Paul Street, Dallas, Taxes 75201.

3.   A.  X The address of the NEW registered office is: (Please provide street 
       ---
     address, city, state and zip code. The address must be in Texas.)
     4606 FM 1960 W, Suite 400, Houston, Texas 77069.

OR   B.___ The registered office address will not change.

4.   The name of the registered agent as PRESENTLY shown in the records of the 
     Texas secretary of state is CT Corporation.

5.   A. X  The name of the NEW registered agent is Anthony Unruh.
       ---

OR   B.___ The registered agent will not change.

6.   Following the changes shown above, the address of the registered office and
     the address of the office of the registered agent will continue to be
     identical, as required by law.

7.   The changes shown above were authorized by:
     Business Corporations may select A or B     Limited Liability Companies may
     Non-Profit Corporations may select          select D or E 
     A, B, or C                                  Limited Partnerships select F

     A.___ The board of directors; OR
     B.___ An officer of the corporation so authorized by the board of 
           directors; OR 
     C.___ The members of the corporation in whom management of the corporation 
           is vested pursuant to article 2.14C of the Texas Non-Profit 
           Corporation Act.
     D. X  Its members
       ---
     E.___ Its managers
     F.___ The limited partnership           HOME DIALYSIS OF AMERICA, INC.


                                             By: /s/ John B. Bourke, C.F.O.
                                             -----------------------------------
                                             (Authorized Member of LLC)

(TEXAS - 2231 - 12/28/95)

 
[SEAL]                         ASSUMED NAME CERTIFICATE

1.   The name of the corporation, limited liability company, limited
     partnership, or registered limited liability partnership as stated in its
     articles of incorporation, articles of organization, certificate of limited
     partnership, application or comparable document is Dialysis Specialists of
     South Texas, L.L.C.

2.   The assumed name under which the business or professional service is or is 
     to be conducted or rendered is Beeville Dialysis Center.

3.   The state, country, or other jurisdiction under the laws of which it was 
     incorporated, organized or associated is Texas, and the address of its 
     registered or similar office in that jurisdiction is See Paragraph 6 below.

4.   The period, not to exceed 10 years, during which the assumed name will be 
     used is 10 years.

5.   The entity is a (circle one): business corporation, non-profit corporation,
     professional corporation, professional association, limited liability
     company, limited partnership, registered limited liability partnership or
     some other type of incorporated business, professional or other association
     (specify) Limited Liability Company.

6.   If the entity is required to maintain a registered office in Texas, the 
     address of the registered office is 4606 FM 1960 W, Suite 400, Houston,
     Texas 77069 and the name of its registered agent at such address is 
     Anthony Unruh.  The address of the principal office (if not the same as the
     registered office) is 13434 Up River Road, Suite A-17, Corpus Christi, 
     Texas.

7.   If the entity is not required to or does not maintain a registered office 
     in Texas, the office address in Texas is___________________________________
     and if the entity is not incorporated, organized or associated under the 
     laws of Texas, the address of its place of business in Texas is ___________
     ___________________________ and the office address elsewhere is ___________
     __________________________________________________________________________.

8.   The county or counties where business or professional services are being or
     are to be conducted or rendered under such assumed name are (if applicable,
     use the designation "ALL" or "ALL EXCEPT").

          All.


       (Certificate must be executed and notarized on the back of this form.)

 
                                               HOME DIALYSIS OF AMERICA
 
                                               By: /s/ John B. Bourke
                                                  ------------------------------
                                                Signature of Member, Dialysis 
                                                Specialists of South Texas

Before me on this 11th day of October, 1996, personally appeared John B. Bourke 
and acknowledged to me that ____ he executed the foregoing certificate for the 
purposes therein expressed.

     (Notary Seal)                     /s/ Patricia L'Odense
                                       -----------------------------------------
                                                Notary Public, STATE OF ILLINOIS

               INSTRUCTIONS FOR FILING ASSUMED NAME CERTIFICATE

1.   A corporation, limited liability company, limited partnership or registered
     limited liability partnership, which regularly conducts business or renders
     a professional service in this state under a name other than the name
     contained in its articles of incorporation, articles of organization,
     certificate of limited partnership or application, must file an assumed
     name certificate with the secretary of state and with the appropriate
     county clerk in accordance with section 36.11 of the Texas Business and
     Commerce Code.

2.   The information provided in paragraph 6 as regards the registered agent and
     registered office address in Texas must match the information on file in
     this office. To verify the information on file with this office, you may
     contact our corporate information unit at (512) 463-5555. Forms to change
     the registered agent/office are available from this office should you
     require to update this information.

3.   A certificate executed and acknowledged by an attorney-in-fact shall
     include a statement that the attorney-in-fact has been duly authorized in
     writing by his principal to execute and acknowledge the same.

4.   For purposes of filing with the secretary of state, the assumed name
     registrant should submit an originally executed assumed name certificate
     accompanied by the filing fee of $25 to the Secretary of State, Statutory
     Filings Division, Corporations Section, P.O. Box 13697, Austin, Texas 
     78711-3697. The Phone number is (512) 463-5582, TDD: (800) 735-2989, FAX: 
     (512) 463-5709.

5.   All assumed name certificates to be filed with the county clerk must be 
     forwarded directly to the appropriate county clerk by the assumed name 
     registrant.

6.   Whenever an event occurs that causes the information in the assumed name
     certificate to become materially misleading (eg. change of registered
     agent/office or a change of name), a new certificate must be filed within
     60 days after the occurrence of the events which necessitate the filing.

7.   A registrant that ceases to transact business or render professional
     services under an assumed name for which a certificate has been filed may
     file an abandonment of use pursuant to the Texas Business and Commerce
     Code, (S)36.14. Forms for this purposes are available from this office.


 
[SEAL]                         ASSUMED NAME CERTIFICATE

1.   The name of the corporation, limited liability company, limited
     partnership, or registered limited liability partnership as stated in its
     articles of incorporation, articles of organization, certificate of limited
     partnership, application or comparable document is DIALYSIS SPECIALISTS OF
     SOUTH TEXAS, L.L.C.

2.   The assumed name under which the business or professional service is or is 
     to be conducted or rendered is DIALYSIS SPECIALISTS OF RIVERSIDE.

3.   The state, country, or other jurisdiction under the laws of which it was 
     incorporated, organized or associated is  TEXAS, and the address of its 
     registered or similar office in that jurisdiction is 4606 FM 1960 W, Suite
     400, Houston, Texas 77069.

4.   The period, not to exceed 10 years, during which the assumed name will be 
     used is 10 years.

5.   The entity is a (circle one): business corporation, non-profit corporation,
     professional corporation, professional association, limited liability
     company, limited partnership, registered limited liability partnership or
     some other type of incorporated business, professional or other association
     (specify) Limited Liability Company.

6.   If the entity is required to maintain a registered office in Texas, the 
     address of the registered office is 4606 FM 1960 W, Suite 400, Houston,
     Texas 77069 and the name of its registered agent at such address is 
     Anthony Unruh.  The address of the principal office (if not the same as the
     registered office) is 13434 Up River Road Suite A-17, Corpus Christi, 
     Texas.

7.   If the entity is not required to or does not maintain a registered office
     in Texas, the office address in Texas is N/A and if the entity is not
     incorporated, organized or associated under the laws of Texas, the address
     of its place of business in Texas is ______________________________________
     and the office address elsewhere is ______________________________________.

8.   The county or counties where business or professional services are being or
     are to be conducted or rendered under such assumed name are (if applicable,
     use the designation "ALL" or "ALL EXCEPT"):

          All.

       (Certificate must be executed and notarized on the back of this form.)
 

 
                                /s/ William L. Shaffer
                                ------------------------------------------------
                                Signature of officer, general partner, manager, 
                                representative or attorney-in-fact of the entity


Before me on this 3 day of 12, 1996, personally appeared WILLIAM L. SHAFFER and 
acknowledged to me that ____ he executed the foregoing certificate for the 
purposes therein expressed.

[Notary Seal]                 /s/ Louisa M. Gomez
                              --------------------------------------------------
                              Notary Public, State of Texas

               INSTRUCTIONS FOR FILING ASSUMED NAME CERTIFICATE

1.   A corporation, limited liability company, limited partnership or registered
     limited liability partnership, which regularly conducts business or renders
     a professional service in this state under a name other than the name
     contained in its articles of incorporation, articles of organization,
     certificate of limited partnership or application, must file an assumed
     name certificate with the secretary of state and with the appropriate
     county clerk in accordance with section 36.11 of the Texas Business and
     Commerce Code.

2.   The information provided in paragraph 6 as regards the registered agent and
     registered office address in Texas must match the information on file in 
     this office.  To verify the information on file with this office, you may 
     contact our corporate information unit at (512) 463-5555.  Forms to change 
     the registered agent/office are available from this office should you 
     require to update this information.

3.   A certificate executed and acknowledged by an attorney-in-fact shall 
     include a statement that the attorney-in-fact has been duly authorized in 
     writing by his principal to execute and acknowledge the same.

4.   For purposes of filing with the secretary of state, the assumed name 
     registrant should submit an originally executed assumed name certificate 
     accompanied by the filing fee of $25 to the Secretary of State, Statutory 
     Filings Division, Corporations Section, P.O. Box 13697, Austin, Texas 
     78711-3697.  The phone number is (512) 463-5582, TDD: (800) 735-2989, FAX: 
     (512) 463-5709.

5.   All assumed name certificates to be filed with the county clerk must be 
     forwarded directly to the appropriate county clerk by the assumed name 
     registrant.

6.   Whenever an event occurs that causes the information in the assumed name 
     certificate to become materially misleading (eg. change of registered 
     agent/office or a change of name), a new certificate must be filed within 
     60 days after the occurrence of the events which necessitate the filing.

7.   A registrant that ceases to transact business or render professional 
     services under an assumed name for which a certificate has been filed may 
     file an abandonment of use pursuant to the Texas Business and Commerce 
     Code, (S)36.14.  Forms for this purposes are available from this office.