Journal article (1996) - C Leguijt (author), P Lolgen (author), JA Eikelboom (author), AW Weeber (author), FM Schuurmans (author), WC Sinke (author), P.F.A. Alkemade (author), Pasqualina M Sarro (author), CHM Maree (author), LA Verhoef (author)