[1] Fudan Univ, Huashan Hosp, Shanghai Med Coll, Dept Pancreat Surg, Shanghai 200040, Peoples R China
[2] Univ Maryland, Dept Med, Med Ctr, Midtown Campus, Baltimore, MD USA
[3] Univ Maryland, Hlth Sci & Human Serv Lib, 601 Lombard St, Baltimore, MD 21201 USA
[4] SUNY Downstate Hlth & Sci Univ, Dept Med, Brooklyn, NY 11203 USA
[5] AMITA Hlth St Joseph Hosp Chicago, Internal Med, Chicago, IL USA
[6] Freeman Rd Hosp, HPB & Transplant Unit, Newcastle Upon Tyne, England
[7] Univ Auckland, Fac Med & Hlth Sci, Surg & Translat Res Ctr, Auckland 1142, New Zealand
[8] Fudan Univ, Huashan Hosp, Shanghai Med Coll, Dept Pancreat Surg,Pancreat Dis Inst, Shanghai 200040, Peoples R China