Authors: Schenk, BE Kuipers, EJ Nelis, GF Bloemena, E Thijs, JC Snel, P Luckers, AEG Klinkenberg-Knol, EC Festen, HPM Viergever, PP Lindeman, J Meuwissen, SGM

Citation: Be. Schenk et al., Effect of Helicobacter pylori eradication on chronic gastritis during omeprazole therapy, GUT, 46(5), 2000, pp. 615-621

Authors: Schenk, BE Kuipers, EJ Klinkenberg-Knol, EC Bloemena, EC Sandell, M Nelis, GF Snel, P Festen, HPM Meuwissen, SGM

Citation: Be. Schenk et al., Atrophic gastritis during long-term omeprazole therapy affects serum vitamin B-12 levels, ALIM PHARM, 13(10), 1999, pp. 1343-1346

Authors: Festen, HPM Schenk, E Tan, G Snel, P Nelis, F

Citation: Hpm. Festen et al., Omeprazole versus high-dose ranitidine in mild gastroesophageal reflux disease: Short- and long-term treatment, AM J GASTRO, 94(4), 1999, pp. 931-936