[1] INT BLOOD GRP REFERENCE LAB,BRISTOL,AVON,ENGLAND
[2] INST NATL TRANSFUS SANGUINE,F-75015 PARIS,FRANCE
[3] SCI CONSULTAT & TRANSLAT,BERGISCH GLADBAC,GERMANY
[4] AUCKLAND INST TECHNOL,AUCKLAND,NEW ZEALAND
[5] DUKE UNIV,MED CTR,DURHAM,NC
[6] AARHUS UNIV HOSP,DK-8000 AARHUS,DENMARK
[7] UNIV HOSP,ANN ARBOR,MI
[8] STATENS INST FOLKESHELSE,OSLO,NORWAY
[9] MAGEN DAVID ADOM,TEL HASHOMER,ISRAEL
[10] YORKSHIRE BLOOD TRANSFUS SERV,LEEDS,W YORKSHIRE,ENGLAND
[11] AMER RED CROSS,PHILADELPHIA,PA
[12] GAMMA BIOL INC,HOUSTON,TX
[13] UNIV TEXAS,SCH MED,HOUSTON,TX
[14] OSAKA RED CROSS BLOOD CTR,OSAKA,JAPAN
[15] NEW YORK BLOOD CTR,NEW YORK,NY 10021
[16] CTR NATL REFERENCE GRP SANGUINS,PARIS,FRANCE
[17] BLUTSPENDEDIENST HESSEN,FRANKFURT,GERMANY
[18] FINNISH RED CROSS & BLOOD TRANSFUS SERV,HELSINKI,FINLAND
[19] HOSP SIRIO LIBANES,SAO PAULO,BRAZIL
[20] RH LAB,WINNIPEG,MB,CANADA
[21] NETHERLANDS RED CROSS,BLOOD TRANSFUS SERV,CENT LAB,AMSTERDAM,NETHERLANDS