Abstract (2003) - GA Koning (author), TLM ten Hagen (author), RM Schifflers (author), G Storm (author), MHM Wauben (author), D Vestweber (author), M Everts (author), RJ Kok (author), G Molema (author), GW Griffioen (author), WJM Mulder (author), K Nicolay (author)