* Correspondence to: Pei-Yin Tsai, MD
Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
Address: 138 Sheng-Li Road, Tainan, Taiwan 704, ROC
Phone numbers: +886-6-2353535 (5221)
E-mail address: tsaipy@ncku.edu.tw
Running title: Optimal Timing of SARS-CoV-2 Vaccination in Pregnancy