van de Looij-Jansen P M, de Wilde E J, Mieloo C L, Donker M C H, Verhulst F C
Municipal Public Health Service for Rotterdam Area, 3000 LP Rotterdam, the Netherlands.
Public Health. 2009 Oct;123(10):686-8. doi: 10.1016/j.puhe.2009.07.015. Epub 2009 Sep 23.