AUTHOREA
Log in
Sign Up
Browse Preprints
LOG IN
SIGN UP
Essential Maintenance
: All Authorea-powered sites will be offline 9am-10am EDT Tuesday 28 May
and 11pm-1am EDT Tuesday 28-Wednesday 29 May. We apologise for any inconvenience.
Wei Xia
Public Documents
1
August 22, 2020
Contraception, pregnancy, and induced abortion within 24 months of delivery in easter...
Yan Che, Yuyan Li, Xiangying Gu, et al.