Pu Dai is Professor at the Department of Otolaryngology, Chinese PLA General Hospital, Beijing, China. Vincent C. Cousin is Professor at the Department of Ear, Nose and Throat Surgery, The Alfred Hospital, Melbourn, Australia. Yue-shuai Song is Associate Professor at Department of Otolaryngology, Beijing Friendship Hospital, Capital Medical University, Beijing, China. They are Editors of “Stereo Operative Atlas of Micro Ear Surgery” (Springer, 2017).