Why not donate sperm? A study of potential donors.
D000533:Altruism; D001290:Attitude; D035843:Biomedical Research; D001782:Blood Donors; D003625:Data Collection; D005249:Fees and Charges; D006801:Humans; D007315:Insemination, Artificial; D009042:Motivation; D012098:Reproduction; D012106:Research; D019529:Sexuality; D013094:Spermatozoa; D013334:Students; D014019:Tissue Donors; D014481:United States; D014495:Universities
Empirical Approach; Genetics and Reproduction