Gays and the stigma of bad blood.
D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control*; D001782:Blood Donors / Q000523:psychology*; D001803:Blood Transfusion / Q000592:standards; D035082:Federal Government; D006467:Hemophilia A / Q000150:complications / Q000628:therapy; D006716:Homosexuality; D006801:Humans; D008297:Male; D065227:Transfusion Reaction; D014481:United States; D014492:United States Public Health Service