title: Invited commentary.
authors.affiliation: Department of Cardiothoracic Surgery, University of Texas Health Science Center-San Antonio, 7703 Floyd Curl Dr, MC 7841, San Antonio, TX  78229, USA. carpentera2@uthscsa.edu
authors.forename: Andrea J
authors.initials: AJ
authors.lastname: Carpenter
mesh_terms: D016063:Blood Loss, Surgical / Q000517:prevention & control*; D001803:Blood Transfusion / Q000941:ethics*; D006348:Cardiac Surgical Procedures / Q000941:ethics*; D005260:Female; D006801:Humans; D033221:Jehovah's Witnesses; D008297:Male