Invited commentary.
Kasimir
Marie-Theres
MT
Department of Cardiothoracic Surgery, University of Vienna, Waehringer Guertel 18-20, Wien A1090, Austria. marie-theres.kasimir@meduniwien.ac.at
Wolner
Ernst
E
D000818:Animals; D001705:Bioprosthesis; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation; D007421:Intestine, Small; D011664:Pulmonary Valve; D012756:Sheep