[1] Blood Transfus Serv Sanquin, Cent Lab, NL-1066 CX Amsterdam, Netherlands
[2] Blood Bank N Holland Sanquin, NL-1066 CX Amsterdam, Netherlands
[3] Banc Teixits, Ctr Transfusio, Barcelona 08035, Spain
[4] Irish Blood Transfus Serv, Natl Blood Ctr, Dublin 8, Ireland
[5] IRCCS Osped Maggiore Milano, Ctr Trasfusionale & Immunol Trapianti, I-20122 Milan, Italy
[6] Hong Kong Red Cross Blood Transfus Serv, Kowloon, Hong Kong, Peoples R China
[7] Sanquin Blood Supply Fdn, Div Diagnost Serv, NL-1066 CX Amsterdam, Netherlands
[8] Inst Publ Hlth, Dept Microbiol, B-1050 Brussels, Belgium
[9] Japanese Red Cross, Plasma Fractionat Ctr, Chitose Shi 0668610, Japan
[10] Hiroshima Univ, Sch Med, Dept Hyg, Minami Ku, Hiroshima 7348551, Japan
[11] New Zealand Blood Serv, Epsom, New Zealand
[12] Fundacao Pro Sangue Hemoctr Sao Paulo, BR-05403000 Sao Paulo, Brazil
[13] George Gennimatas Reg Gen Hosp Athens, Reg Blood Transfus Ctr 3, GR-11527 Athens, Greece
[14] Community Blood Ctr Greater Kansas City, Kansas City, MO 64111 USA
[15] Basque Country Blood Transfus Serv, Galdakao Vizcaya 48960, Spain
[16] US FDA, Off Blood Res & Review, Ctr Biol Evaluat & Res, Rockville, MD 20852 USA
[17] N London Ctr, Natl Transfus Microbiol Labs, London NW9 5BG, England
[18] N London Ctr, Natl Blood Author, London NW9 5BG, England
[19] EFS Pyrenees Mediterranee, F-34094 Montpellier, France
[20] EFS Siege, F-75725 Paris, France
[21] Australian Red Cross Blood Serv, Brisbane, Qld 4000, Australia
[22] Univ Oslo, Ullevaal Hosp, Dept Immunol & Transfus Med, N-0407 Oslo, Norway
[23] Univ Oslo, Ullevaal Hosp, Dept Med Microbiol, N-0407 Oslo, Norway
[24] Linkoping Univ Hosp, Dept Transfus Med, Swedish Soc Transfus Med, Working Grp Transfus Transmitted Dis, S-58185 Linkoping, Sweden
[25] Univ Edinburgh, SNBTS NAT Reference Unit, Edinburgh EH9 1QH, Midlothian, Scotland
[26] Finnish Red Cross Blood Transfus Serv, Helsinki, Finland
[27] Western Prov Blood Transfus Serv, Cape Town, South Africa
[28] Blood Transfus Ctr Slovenia, Ljubljana 1000, Slovenia
[29] German Red Cross Blood Transfus Serv Baden Wurtte, D-89081 Ulm, Germany
[30] Baxter AG, Plasmakontrolle, A-1221 Vienna, Austria