Journal article (2008) - BCW Groenendijk (author), S Stekelenburg-De Vos (author), P Vennemann (author), JW Wladimiroff (author), FTM Nieuwstadt (author), RH Lindken (author), J. Westerweel (author), BP Hierck (author), NTC Ursem (author), RE Poelmann (author)