title: [Apropos of blood donation: a constantly changing concept].
authors.forename: A
authors.initials: A
authors.lastname: Fernández Montoya
mesh_terms: D000533:Altruism; D001782:Blood Donors / Q000523:psychology*; D001803:Blood Transfusion / Q000191:economics / Q000592:standards*; D005249:Fees and Charges; D006801:Humans; D009042:Motivation; D012449:Safety; D014838:Volunteers