[1] UNIV ROCHESTER, SCH MED & DENT, DEPT ANAT, DIV GENET, ROCHESTER, NY USA
[2] UNIV ROCHESTER, SCH MED & DENT, DEPT PEDIAT, ROCHESTER, NY 14642 USA
[3] ACAD ZIEKENHUIS, DEPT IMMUNOHAEMATOL, LEIDEN, NETHERLANDS
[4] RIKS HOSP TISSUE TYPING LAB, OSLO, SWEDEN
[5] JOHNS HOPKINS, MED SCH, IMMUNOGENET LAB, BALTIMORE, MD 21218 USA
[6] NEW YORK BLOOD CTR, NEW YORK, NY 10021 USA
[7] ROY MARSDEN HOSP, DEPT CLIN RES, LONDON, ENGLAND
[8] UNIV PARIS, INST RECH MALADIES SANG, PARIS, FRANCE
[9] BASEL INST IMMUNOL, BASEL, SWITZERLAND
[10] UNIV OXFORD, DEPT BIOCHEM, GENET LAB, OXFORD, ENGLAND
[11] VET ADM HOSP, TRANSPLANT LAB, DURHAM, NC 27705 USA
[12] INST HEMATOL, CTR TRANSF SANGUINE, MONTEPLLIER, FRANCE
[13] STANFORD UNIV, SCH MED, DEPT MED, STANFORD, CA 94305 USA
[14] MUNICIPAL HOSP, BLOOD BANK & GROUPING LAB, AARHUS, DENMARK
[15] KAROLINSKA INST, DEPT TUMOR BIOL, STOCKHOLM, SWEDEN
[16] LONDON HOSP, MED COLL, TRANSPLANTATION IMMUNOL UNIT, LONDON, ENGLAND