title: An unusual cause of early aortic bioprosthetic valve failure.
authors.affiliation: Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, 03722 Seoul, Republic of Korea.
authors.forename: Shinjeong
authors.initials: S
authors.lastname: Song
authors.affiliation: Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, 03722 Seoul, Republic of Korea cysprs@yuhs.ac.
authors.forename: Chi Young
authors.initials: CY
authors.lastname: Shim
authors.affiliation: Department of Pathology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: Hyo Sup
authors.initials: HS
authors.lastname: Shim
authors.affiliation: Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, 03722 Seoul, Republic of Korea.
authors.forename: Geu-Ru
authors.initials: GR
authors.lastname: Hong
authors.affiliation: Division of Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: Byung-Chul
authors.initials: BC
authors.lastname: Chang
mesh_terms: D000230:Adenocarcinoma / Q000188:drug therapy* / Q000473:pathology; D000970:Antineoplastic Agents / Q000009:adverse effects*; D001021:Aortic Valve / Q000601:surgery*; D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging* / Q000601:surgery*; D001705:Bioprosthesis; D004452:Echocardiography; D005260:Female; D000077156:Gefitinib; D006801:Humans; D008175:Lung Neoplasms / Q000188:drug therapy* / Q000473:pathology; D008875:Middle Aged; D011475:Prosthesis Failure; D011799:Quinazolines / Q000009:adverse effects*
chemical_list: D000970:Antineoplastic Agents; D011799:Quinazolines; D000077156:Gefitinib