Document Type : Commentary
Authors
1 School of Public Health, Zhejiang Chinese Medical University, Zhejiang, China
2 Department of Obstetrics and Gynecology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
3 Department of Public Health, Faculty of Medicine, Helsinki University, Helsinki, Finland
4 Department of Obstetrics and Gynecology, Central Finland Central Hospital, Jyväskylä, Finland
Abstract
Keywords