The Vel blood group system.
D001789:Blood Group Antigens; D001793:Blood Preservation; D001803:Blood Transfusion; D001963:Bromelains / Q000494:pharmacology; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D007518:Isoantibodies / Q000032:analysis
D001789:Blood Group Antigens; D007518:Isoantibodies; D001963:Bromelains