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                                                                 EXHIBIT 3.10


                                     BYLAWS
                                       OF
                                  MEDSUB, INC.

                                   ARTICLE I
                                        
                                    OFFICES

         The Corporation will at all times maintain a registered office in the
State of Georgia and a registered agent at that address but may have other
offices located within or outside the State of Georgia as the Board of Directors
may determine.

                                   ARTICLE II
                                        
                             SHAREHOLDERS' MEETINGS

         2.1  Annual Meeting.  A meeting of Shareholders of the Corporation
shall be held annually. The annual meeting shall be held at such time and place
and on such date as the Directors shall determine from time to time and as shall
be specified in the notice of the meeting.

         2.2  Special Meeting.  Special meetings of the Shareholders may be
called at any time by the Board of Directors, the President or any holder or
holders of at least twenty-five percent (25%) of the outstanding capital stock
of the Corporation. Special meetings shall be held at such a time and place and
on such date as shall be specified in the notice of the meeting.

         2.3  Place.  Annual or special meetings of Shareholders may be held
within or without the State of Georgia.

         2.4  Notice.  Notice of annual or special Shareholders meetings stating
the place, day and hour of the meeting shall be given in writing not less than
ten (10) nor more than sixty (60) days before the date of the meeting, either
mailed to the last known address or personally given to each Shareholder. Notice
of a meeting may be waived by an instrument in writing executed before or after
the meeting. The waiver need not specify the purpose of the meeting or the
business transacted, unless one of the purposes of the meeting concerns a plan
of merger or consolidation, in which event the waiver shall comply with the
further requirements of law concerning such waivers. Attendance at such meeting
in person or by proxy shall constitute a waiver of notice thereof. Notice of any
special meeting of Shareholders shall state the purpose or purposes for which
the meeting is called. The notice of any meeting at which amendments to or
restatements of the articles of incorporation, merger or consolidation of the
Corporation, or the


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disposition of corporate assets requiring Shareholder approval are to be
considered shall state such purposes, and further comply with all requirements
of law.

     2.5  Quorum.  At all meetings of Shareholders a majority of the outstanding
shares of stock shall constitute a quorum for the transaction of business, and
no resolution or business shall be transacted without the favorable vote of the
holders of a majority of the shares represented at a meeting where a quorum is
present and entitled to vote. When a quorum is once present to organize a
meeting of the Shareholders, the Shareholders may continue to do business at the
meeting or at any adjournment thereof notwithstanding the withdrawal of enough
Shareholders to leave less than a quorum. The holders of a majority of the
voting shares represented at a meeting, whether or not a quorum is present, may
adjourn such meeting form time to time.

     2.6  Action in Lieu of Meeting.  Any action to be taken at a meeting of the
Shareholders of the Corporation, or any action that may be taken at a meeting of
the Shareholders, may be taken without a meeting if a consent in writing setting
forth the action so taken shall be signed by the holders of all of the shares
entitled to vote with respect to the subject matter thereof, or by the holders
of such lesser number of shares as may be required in accordance with any lawful
provision of the Articles of Incorporation, and any further requirements of law
pertaining to such consents have been complied with.


                                  ARTICLE III

                                   DIRECTORS

     3.1  Management.  Subject to these by-laws, the Articles of Incorporation,
any restrictions imposed by law or any lawful agreement between the
Shareholders, the full and entire management of the affairs and business of the
Corporation shall be vested in the Board of Directors, which shall have and may
exercise all of the powers that may be exercised or performed by the
Corporation.

     3.2  Number of Directors; Quorum.  The Shareholders shall fix by resolution
the precise number of members of the Board of Directors, provided that the Board
of Directors shall consist of not fewer than one (1) nor more than ten (10)
members. Directors shall be elected at each annual meeting of the Shareholders
and shall serve for a term of one (1) year and until their successors are
elected. A majority of Directors shall constitute a quorum for the transaction
of business. All resolutions adopted and all business transacted by the Board of
Directors shall require the affirmative vote of a majority of the Directors
present at a meeting where a quorum is present.

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     3.3  Vacancies.  The Directors may fill the place of any Director 
which may become vacant prior to the expiration of his term, such appointment
by the Directors to continue until the expiration of the term of the Director
whose place has become vacant, or may fill any directorship created by reason
of an increase in the number of Directors, such appointment by the Directors to
continue for a term of office until the next election of Directors by the
Shareholders and until the election of the successor.

     3.4  Meetings.  The Directors shall meet annually, without notice,
following the annual meeting of the Shareholders. Special meetings of the
Directors may be called at any time by the President or by any two Directors if
the Board has three or more Directors, or by any Director if the Board has less
than three members, on two days' written notice to each Director, which notice
shall specify the time and place of the meeting. Notice of any such meeting may
be waived by an instrument in writing executed before or after the meeting.
Directors may attend and participate in meetings either in person or by means
of conference telephones or similar communications equipment by means of which
all persons participating in the meeting can hear each other, and participation
in a meeting by means of such communication equipment shall constitute presence
in person at any meeting. Attendance in person at such meeting shall constitute
a waiver of notice thereof.

     3.5  Action in Lieu of Meeting.  Any action to be taken at a meeting of
the Directors, or any action that may be taken at a meeting of the Directors,
may be taken without a meeting if a consent in writing, setting forth the
action so taken, shall be signed by all of the Directors and any further
requirements of law pertaining to such consents have been complied with.

     3.6  Removal.  Any Director may be removed from office, with or without
cause, upon the majority vote of the Shareholders, at a meeting with respect to
which notice of such purpose is given.

                                   ARTICLE IV

                                    OFFICERS

     4.1  General Provisions.  The officers of the Corporation shall consist of
a President, a Secretary and a Treasurer who shall be elected by the Board of
Directors, and such other officers as may be elected by the Board of Directors
or appointed as provided in these Bylaws. Each officer shall be elected or
appointed for a term of office running until the meeting of the Board of
Directors following the next annual meeting of the Shareholders of the
Corporation, or such other term as provided by resolution of the Board of
Directors or the appointment of office. Each officer shall serve for the term
of his office for which he is elected or

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appointed and until his successor has been elected or appointed and is
qualified or his earlier resignation, removal from office or death. Any two or
more offices may be held by the same person.

     4.2  President.  The President shall have the powers and duties of
supervision and management usually vested in the office of President of a
corporation. He shall preside at all meetings of the stockholders if present
thereat, at all meetings of the Board of Directors, and shall have general
supervision, direction and control of the business of the Corporation. Except
as the Board of Directors shall authorize the execution thereof in some other
manner, he shall execute bonds, mortgages, and other contracts on behalf of the
Corporation, and shall cause the seal to be affixed to any instrument
requiring it and when so affixed the seal shall be attested by the signature of
the Secretary, an Assistant Secretary or the Treasurer.

     4.3  Secretary.  The Secretary shall keep minutes of all meetings of the
Shareholders and Directors and have charge of the minute books, stock books and
seal of the Corporation and shall perform such other duties and have such other
powers as may from time to time be delegated to him by the President or the
Board of Directors.

     4.4  Treasurer.  The Treasurer shall be charged with the management of the
financial affairs of the Corporation, shall have the power to recommend action
concerning the Corporation's affairs to the President, and shall perform such
other duties and have such other powers as may from time to time be delegated
to him by the President or Board of Directors.

     4.5  Assistant Secretaries and Treasurer.  Assistants to the Secretary and
Treasurer may be appointed by the President or elected by the Board of
Directors and shall perform such duties and have such powers as shall be
delegated to them by the President or the Board of Directors.

     4.6  Vice Presidents.  The Corporation may have one or more Vice
Presidents, elected by the Board of Directors, who shall perform such duties
and have such powers as may be delegated by the President or the Board of
Directors.

                                   ARTICLE V

                                 CAPITAL STOCK

         5.1  Share Certificates.  Share certificates shall be numbered in the
order in which they are issued. They shall be signed by the President or any
Vice President and the Secretary or an Assistant Secretary and the seal of the
Corporation shall be affixed thereto. Share certificates shall be kept in a book
and shall be issued in 


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consecutive order therefrom. The name of the person owning the shares, the
number of shares, and the date of issue shall be entered on the stub of each
certificate. Share certificates exchanged or returned shall be canceled by the
Secretary or an Assistant Secretary and placed in their original place in the
stock book.

     5.2  Transfer of Shares.  Transfers of shares shall be made on the stock
books of the Corporation by the holders in person or by power of attorney, on
surrender of the old certificates for such shares, duly assigned.

     5.3  Voting.  The holders of the capital stock shall be entitled to one
vote for each share of stock in their name.

                                   ARTICLE VI

                                      SEAL

     The seal of the Corporation shall be in such form as the Board of Directors
may from time to time determine. In the event it is inconvenient to use such a
seal at any time, the signature of the Corporation followed by the word "Seal"
enclosed in parentheses or scroll shall be deemed the seal of the Corporation.
The seal shall be in the custody of the Secretary and affixed by him or by his
assistants on the certificates of stock and other appropriate papers.

                                  ARTICLE VII

                                   AMENDMENT

     These Bylaws may be amended by majority vote of the Board of Directors of
the Corporation or by majority vote of the Shareholders, provided that the
Shareholders may provide by resolution that any Bylaw provision repealed,
amended, adopted or altered by them may not be repealed, amended, adopted or
altered by the Board of Directors.

                                  ARTICLE VIII

                                INDEMNIFICATION

     Each person who is or was a Director or officer of the Corporation, and
each person who is or was a Director or officer of the Corporation who at the
request of the Corporation is serving or has served as an officer, director,
partner, joint venturer or trustee of another corporation, partnership, joint
venture, trust or other enterprise shall be indemnified by the Corporation
against 


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those expenses (including attorneys' fees), judgments, fines and amounts paid
in settlement which are allowed to be paid or reimbursed by the Corporation
under the laws of the State of Georgia and which are actually and reasonably
incurred in connection with any action, suit, or proceeding, pending or
threatened, whether civil, criminal, administrative or investigative, in which
such person may be involved by reason of his being or having been a director or
officer of this Corporation or of such other enterprises. Such indemnification
shall be made only in accordance with the laws of the State of Georgia and
subject to the conditions prescribed therein.

     In any instance where the laws of the State of Georgia permit
indemnification to be provided to persons who are or have been an officer or
Director of the Corporation or who are or have been an officer, director,
partner, joint venturer or trustee of any such other enterprise only on a
determination that certain specified standards of conduct have been met, upon
application for indemnification by any such person the Corporation shall
promptly cause such determination to be made by the Shareholders, but shares
owned by or voted under the control of Directors who are at the time parties to
the proceeding may not be voted on the determination.

     As a condition to any such right of indemnification, the Corporation may
require that it be permitted to participate in the defense of any such action
or proceeding through legal counsel designated by the Corporation and at the
expense of the Corporation.

     The Corporation may purchase and maintain insurance on behalf of any such
persons whether or not the Corporation would have the power to indemnify such
officers and Directors against any liability under the laws of the State of
Georgia. If any expenses or other amounts are paid by way of indemnification,
other than by court order, action by Shareholders or by an insurance carrier,
the Corporation shall provide notice of such payment to the Shareholders in
accordance with the provisions of the laws of the State of Georgia.


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