The times, they are a-changing... constantly!
Patrick W
PW
Serruys
D001021:Aortic Valve; D035843:Biomedical Research; D002309:Cardiology / Q000639:trends*; D005060:Europe; D006349:Heart Valve Diseases / Q000601:surgery*; D019918:Heart Valve Prosthesis Implantation / Q000379:methods / Q000639:trends*; D006801:Humans