[1] BEECHAM PHARMACEUT,BIOSCI RES CTR,DIV RES,EPSOM KT18 5XQ,SURREY,ENGLAND
[2] HOTEL DIEU,LAB CENT HEMATOL,F-75181 PARIS 04,FRANCE
[3] BEECHAM PHARMACEUT EUROPEAN DIV,BRUSSELS,BELGIUM
[4] ROYAL SUSSEX CTY HOSP,BRIGHTON BN2 5BE,E SUSSEX,ENGLAND
[5] CATHARINA ZIEKEHUIS,EINDHOVEN,NETHERLANDS
[6] BEECHAM PHARMACEUT,EPSOM KT18 5XQ,SURREY,ENGLAND
[7] UNIV FREIBURG KLINIKUM,MED KLIN,INNERE MED ABT 3,FREIBURG,FED REP GER
[8] TEMPLE UNIV,HLTH SCI CTR,SCH MED,DEPT MED,PHILADELPHIA,PA 19140
[9] TEMPLE UNIV,HLTH SCI CTR,SCH MED,THROMBOSIS RES CTR,PHILADELPHIA,PA 19140
[10] UNIV UTAH,SCH MED,SALT LAKE CITY,UT 84112
[11] UNIV GLASGOW,STOBHILL GEN HOSP,DEPT MAT MED,GLASGOW G21 3UW,SCOTLAND
[12] UNIV ROCHESTER,SCH MED & DENT,DEPT MED,HEMATOL UNIT,ROCHESTER,NY 14642
[13] KRANKENANSTALT RUDOLFSTIFTUNG,MED BRANCH,A-1030 VIENNA,AUSTRIA
[14] UNIV UTAH,LATTER DAY ST HOSP,DIV CARDIOL,SALT LAKE CITY,UT 84143