1 EXHIBIT 21.1 SUBSIDIARIES JURISDICTION OF NAME UNDER WHICH SUCH SUBSIDIARY INCORPORATION SUBSIDIARIES CONDUCT BUSINESS - ---------- --------------- ----------------------------- WorldMed, Inc. Delaware WorldMed International, Inc. Delaware WorldMed, N.V. Belgium Diagnostic Imaging, Inc. Florida PSS Service, Inc. Florida PSS Holding, Inc. Florida Physician Sales & Service Limited Partnership Florida PSS Rhode Island, Inc. Rhode Island PSS Texas, Inc. Texas PSS Delaware, Inc. Delaware PSS Physician Services, Inc. Florida Standard/Crescent City Surgical Supplies, Inc. Louisiana All subsidiaries are 100% owned by Physician Sales & Service, Inc., except for WorldMed, N.V. which is owned by WorldMed, Inc. and WorldMed International, Inc. 49