Zhao cheng-quan ，University of Pittsburgh Medical School Professor 。Participated in the second CSCCP and the Thirteenth National Symposium on cervical precancerous lesions and cervical cancer and participated in the lecture. The content of the meeting by the Peking University: Department of Obstetrics and Gynecology, Peking University People's Hospital, China "obstetrics and Gynecology" magazine agency, China eugenics Association for colposcopy and cervical pathology branch (CSCCP) sponsored by the National Institute for health industry management of maternal and child health industry branch, Beijing branch of the Chinese Medical Association, Chinese Medical Doctor Association Beijing branch, Department of gynecology and obstetrics of Beijing maternal and child health hospital CO "the second CSCCP and the Thirteenth National cervical cancer and uterine cancer seminar hot spots will be May 2016 20-22 held at the Beijing Convention center.