1. Cot death and sleeping position in The Netherlands;de Jonge;BMJ,1989
2. National Center for Chronic Disease Prevention and Health Promotion, CDC: Achievements in Public Health, 1900-1999: Healthier Mothers and Babies;Division of Reproductive Health;MMWR,1999
3. The Vermont Oxford Network: a community of practice;Horbar;Clin Perinatol,2010
4. Maternal mortality in the United States: changes in coding, publication, and data release, 2018. vol 69 no 2;Hoyert,2020
5. Cohort profile: the Norwegian Mother and Child Cohort Study (MoBa);Magnus;Int J Epidemiol,2006