title: Invited commentary.
authors.affiliation: Pediatric Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, MLC 2004, Cincinnati, OH 45229. Electronic address: david.morales@cchmc.org.
authors.forename: David L S
authors.initials: DL
authors.lastname: Morales
authors.affiliation: Pediatric Cardiothoracic Surgery, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, MLC 2004, Cincinnati, OH 45229.
authors.forename: Muhammad S
authors.initials: MS
authors.lastname: Khan
mesh_terms: D064591:Allografts; D000818:Animals; D015925:Cryopreservation; D004696:Endocarditis / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007601:Jugular Veins / Q000637:transplantation*; D008297:Male; D011183:Postoperative Complications / Q000453:epidemiology*; D014694:Ventricular Outflow Obstruction / Q000601:surgery*