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World J Gastroenterol. Dec 7, 2005; 11(45): 7152-7158
Published online Dec 7, 2005. doi: 10.3748/wjg.v11.i45.7152
Internet-based data inclusion in a population-based European collaborative follow-up study of inflammatory bowel disease patients: Description of methods used and analysis of factors influencing response rates
Frank L Wolters, Gilbert van Zeijl, Jildou Sijbrandij, Frederik Wessels, Colm O’Morain, Charles Limonard, Maurice G Russel, Reinhold W Stockbrügger
Frank L Wolters, Reinhold W Stockbrügger, Department of Gastroenterology and Hepatology, University Hospital Maastricht, P. Debyeplein 25, 6202 AZ Maastricht, The Netherlands
Gilbert van Zeijl, Jildou Sijbrandij, Charles Limonard, MEMIC, Centre for Data and Information Management, P. Debyeplein 1, 6229 HA Maastricht, The Netherlands
Frederik Wessels, Global Vitis, Wattstraat 52, 2171 TR Sassenheim, The Netherlands
Colm O’Morain, Adelaide and Meath Hospital, Department of Gastroenterology, Trinity College, Tallaght, SE-41345 Dublin 24, Ireland
Maurice G Russel, Department of Gastroenterology and Hepatology, Medisch Spectrum Twente, Haaksbergerstraat 55, 7513 ER Enschede, The Netherlands
Author contributions: All authors contributed equally to the work.
Supported by the European Commission as a fifth framework shared cost action (QLG4-CT-2000-01414)
Correspondence to: Dr FL Wolters, Department of Gastroenterology and Hepatology, PO box 5800, 6202 AZ Maastricht, The Netherlands. frankwolters@ace-on-air.nl
Telephone: +31-43-3875021
Received: January 13, 2005
Revised: February 15, 2005
Accepted: February 18, 2005
Published online: December 7, 2005
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