Evaluation of the comparative influence of magnesium sulfate single and combination with ritodrine hydrochloride in the prevention of preterm delivery

by Xu Shuifang, Zhang Fengying, He Yuhua, Lv Xiyun, Tian Jinfang, Qi YI, Xu Fengying
Published 2020-03-01

Spatial and temporal variability of air quality in Shanghai in 2015

by Liu Li, He Lihuan, Bai Yu, Zhou Mi, Zhang Fengying, Wu Yirui, Gao Guowei, Yu Yang
Published 2020-01-01