[1] Collaborat Res CORE Grp, Sydney, NSW, Australia
[2] Univ New S Wales, St George Hosp, Dept Cardiothorac Surg, Sydney, NSW, Australia
[3] Guangzhou Med Univ, Affiliated Hosp 1, Dept Cardiothorac Surg, Guangzhou 510120, Guangdong, Peoples R China
[4] Royal Infirm Edinburgh NHS Trust, Dept Cardiothorac Surg, Edinburgh, Midlothian, Scotland
[5] Univ Sydney, Royal Prince Alfred Hosp, Dept Cardiothorac Surg, Sydney, NSW 2006, Australia