title: Invited commentary.
authors.affiliation: Department of Surgery, Duke University Medical Center, Durham, NC, USA. glowe001@mc.duke.edu
authors.forename: Donald D
authors.initials: DD
authors.lastname: Glower
mesh_terms: D004730:Endothelium, Vascular / Q000166:cytology*; D005260:Female; D006349:Heart Valve Diseases / Q000601:surgery*; D006801:Humans; D008297:Male; D011664:Pulmonary Valve / Q000637:transplantation*; D023822:Tissue Engineering / Q000379:methods*