Institution: | aThird Department of Internal Medicine, Faculty of Medicine, Kagoshima University, Sakuragaoka 8-35-1, Kagoshima 890, Japan;bDivision of Transfusion Medicine, Kagoshima University Hospital, Kagoshima 890, Japan;cLaboratory of Medical Virology, The Rockefeller University, New York, NY 10021-6399, USA |