Preterm Birth in China Between 2015 and 2016

Chen, C; Zhang, JW; Xia, HW; Zhang, HX; Betran, AP; Zhang, L; Hua, XL; Feng, LP; Chen, D; Sun, K; Guo, CM; Qi, HB; Duan, T; Zhang, J

Zhang, J (reprint author), Shanghai Jiao Tong Univ, Sch Med, Xinhua Hosp, Shanghai 200092, Peoples R China.

AMERICAN JOURNAL OF PUBLIC HEALTH, 2019; 109 (11): 1597