Journal article (2002) - KT den Boer (author), M. Bruijn (author), JE Jaspers (author), LPS Stassen (author), WFM van Erp (author), A Jansen (author), PMNYH Go (author), J. Dankelman (author), J DANKELMAN (author), Jenny DANKELMAN (author), Jenny Dankelman (author), J Dankelman (author), J. DANKELMAN (author), DJ Gouma (author)