title: Modification of Penn classification and its validation for acute type A aortic dissection.
authors.affiliation: Kaohsiung, Taiwan.
authors.forename: Tsu-Ming
authors.initials: TM
authors.lastname: Chien
authors.affiliation: Kaohsiung, Taiwan.
authors.forename: Quan-Hau
authors.initials: QH
authors.lastname: Cheng
authors.affiliation: Taipei, Taiwan.
authors.forename: Chih-Wei
authors.initials: CW
authors.lastname: Chen
authors.affiliation: Kaohsiung, Taiwan.
authors.forename: Cai-Pei
authors.initials: CP
authors.lastname: Yu
authors.affiliation: Kaohsiung, Taiwan.
authors.forename: Huai-Min
authors.initials: HM
authors.lastname: Chen
authors.affiliation: Kaohsiung, Taiwan.
authors.forename: Ying-Fu
authors.initials: YF
authors.lastname: Chen
mesh_terms: D000784:Aortic Dissection / Q000145:classification*; D017545:Aortic Aneurysm, Thoracic / Q000145:classification*; D006348:Cardiac Surgical Procedures / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male