title: Comment on the "actual" problem editorial.
authors.forename: William N
authors.initials: WN
authors.lastname: Anderson
mesh_terms: D000206:Actuarial Analysis; D001705:Bioprosthesis; D006801:Humans; D011475:Prosthesis Failure; D013223:Statistics as Topic / Q000592:standards; D009626:Terminology as Topic