title: Intensive multiunit plateletpheresis of normal donors.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001772:Blood Cell Count; D001782:Blood Donors; D001792:Blood Platelets; D001803:Blood Transfusion; D006801:Humans; D007938:Leukemia / Q000628:therapy; D008875:Middle Aged; D010956:Plasmapheresis / Q000295:instrumentation*