Fei R, Chen W, Xiang T, Sheng Q, Wang J, Liu F
Department of Anorectal Surgery, The First Affiliated Hospital of Medical School of Zhejiang University, 79, Qingchun Road, Hangzhou, Zhejiang, China.
Tech Coloproctol. 2014 May;18(5):513-4. doi: 10.1007/s10151-013-0996-9. Epub 2013 Mar 23.