Geographical differences in perinatal health and child welfare in the Netherlands: rationale for the healthy pregnancy 4 all-2 program
A.J.M. Waelput; M.K. Sijpkens; J. Lagendijk; M.R.C. van Minde; H. Raat; H.E. Ernst-Smelt; M.L.A. de Kroon; A.N. Rosman; J.V. Been; L.C.M. Bertens; E.A.P. Steegers