2Lee TY, Chen YL,Chang HC, et al. Outcomes of hepatec- tomy for hepatolithiasis[J]. World J Surg, Mar, 2007,31 (3) :479-482.
3Neumann M, Mayer G, Ell C, et al. The Erlangen Endo- Trainer: life-like simulation for diagnostic and interven- tional endoscopic retrograde cholangiography[J]. Endos- eopy,Nov,2000,32(11) :906-910.