Journal article (2006) - Annuska M. Glas (author), A Floore (author), L.F.A. Wessels (author), LJ van 't Veer (author), LJMJ Delahaye (author), AT Witteveen (author), RCF Pover (author), N Bakx (author), JST Lahti-Domenici (author), TJ Bruinsma (author), MO Warmoes (author), Rene Bernards (author)