Coronavirus disease 2019 in pregnant and non-pregnant women: a retrospective study oleh Ying Zha, Ge Chen, Xun Gong, Yuan-Yuan Wu, Xing-Guang Lin, Jian-Li Wu, Ya-Fei Huang, Yu-Qi Li, Ying Zhang, Dong-Rui Deng, Su-Hua Chen, Fu-Yuan Qiao, Ling Feng, Wan-Jiang Zeng, Ke-Zhen Li, Hai-Yi Liu, Pei-Fang Wei.