1. Statistisch jaarboek 1997,1997
2. Impressive but still disappointing decline of perinatal mortality in The Netherlands (in Dutch);Hoogendoorn;Ned. Tijdschr Geneeskd,1986
3. Regional differences in perinatal mortality: associations with some aspects of perinatal care (in Dutch);Mackenbach;Ned Tijdschr Geneeskd,1989
4. Regional perinatal mortality and regional hospitalization at delivery in The Netherlands;Treffers;Br. J. Obstet. Gynaecol.,1986
5. Perinatale en zuigelingensterfte in de gemeente Utrecht, 1983–1992;van Driel,1996