RT Journal Article SR Electronic T1 Pathological laughter in a patient with a brain-stem epidermoid cyst JF Neurosciences Journal JO Neurosciences (Riyadh) FD Prince Sultan Military Medical City SP 265 OP 266 VO 17 IS 3 A1 Hou, Zong-Gang A1 Wu, Zhen A1 Zhang, Jun-Ting A1 Wang, Zhong-Cheng YR 2012 UL http://nsj.org.sa/content/17/3/265.abstract AB