Sciatic nerve associated with piriformis variation and second sacral nerve abnormal branch:a case report
SHU Wu-An, MA Jian-Jun, LIAO Fu-Bing, DIAO Xiao-Nan, GU Jiu-Lian, YUAN Jia-Yang, CUI Zhen-Jie, GUO Lei
Chinese Journal Of Clinical Anatomy . 2013, (4): 456 .