[1] Peking Univ, Hlth Sci Ctr, Int Hosp, Dept Neurosurg, Beijing 102206, Peoples R China
[2] Chinese Acad Med Sci, Canc Hosp, Natl Clin Res Ctr Canc, Dept Breast Surg Oncol,Natl Canc Ctr, Beijing 100021, Peoples R China
[3] Peking Union Med Coll, Beijing 100021, Peoples R China
[4] Univ Cambridge, Cambridge Univ Hosp NHS Fdn Trust, Addenbrookes Hosp, Cambridge Breast Unit, Cambridge Biomed Campus, Cambridge CB2 0QQ, England
[5] Royal Marsden NHS Fdn Trust, Royal Marsden Hosp, Breast Surg Unit, Fulham Rd, London SW3 6JJ, England
[6] Gen Hosp Northern Theater Command, PLA Inst Neurol, Dept Neurosurg, 83 Wenhua Rd, Shenyang 110000, Peoples R China
[7] Univ Michigan, Coll Literature Sci & Arts, 500 S State St 2005, Ann Arbor, MI 48109 USA