title: Reply.
authors.affiliation: Department of Cardiovascular Surgery, TEDA International Cardiovascular Hospital, 300457, Tianjin & The Affiliated Hospital of Hangzhou Normal University & Zhejiang University, Hangzhou, China; Department of Surgery, Oregon Health & Science University, Portland, Oregon. Electronic address: gwhezj@163.com.
authors.forename: Guo-Wei
authors.initials: GW
authors.lastname: He
authors.affiliation: Department of Cardiothoracic Surgery, Oxford University, Oxford Rd, Banbury, Oxfordshire, OX16 9AL, United Kingdom.
authors.forename: David P
authors.initials: DP
authors.lastname: Taggart