[1] MRC, BLOOD GRP UNIT, WOLFSON HOUSE, 4 STEPHENSON WAY, LONDON NW1 2HE, ENGLAND
[2] MINIST HLTH, REFERENCE LAB IMMUNOHAEMATOL & BLOOD GRP, JERUSALEM, ISRAEL
[3] KAPLAN HOSP, IL-76100 REHOVOT, ISRAEL
[4] RAMBAM UNIV HOSP, HAIFA, ISRAEL
[5] GAMMA BIOL INC, HOUSTON, TX USA
[6] BLOOD GRP REFERENCE LAB, OXFORD, ENGLAND