Journal article (2004) - GAM Pop (author), WJ Hop (author), L Moraru (author), M Jagt (author), J Quak (author), D Dekkers (author), Z.Y. Chang (author), Zu Yao Chang (author), ZY Chang (author), Zu-yao Chang (author), Z. Y. Chang (author), Zu-Yao Chang (author), FJ Gijsen (author), DJ Duncker (author), CJ Slager (author)