aThe First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China

bDepartment of Neurology, Guangzhou Medical University Affiliated Brain Hospital, Guangzhou Huiai Hospital, Guangzhou, Guangdong, China

cDepartment of Psychiatry, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China

dDepartment of Gynecology, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China

Received 9 August 2018 Revised 4 January 2019 Accepted 30 January 2019

Correspondence to Yuping Ning, PhD, The First School of Clinical Medicine, Southern Medical University, No.1023, South ShataiRoad, Baiyun District, Guangzhou, Guangdong, China, 510515, Tel: +86 13922214239; e-mail: [email protected]