Ott_a_217975 7897..7909

Hongwei Guan* Juan Li* Rui Sun Wei Liu Mei Feng Hui Ma Changzhong Li 1Department of Obstetrics and Gynecology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, People’s Republic of China; 2Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, People’s Republic of China; 3Shandong University of Traditional Chinese Medicine, Jinan, People’s Republic of China