K. Steen

The prevalence of H. pylori is still substantial in rheumatic patients

B. Dijkmans, W. Lems, Htji De Leest, 2002, Scandinavian journal of rheumatology.

High incidence of cardiovascular events in patients with rheumatoid arthritis

W. Lems, M. Boers, J. Twisk, 2009, Annals of the rheumatic diseases.

Decreasing incidence of symptomatic gastrointestinal ulcers and ulcer complications in patients with rheumatoid arthritis

W. Lems, M. Boers, M. Nurmohamed, 2007, Annals of the rheumatic diseases.

Relapsing splenic vein thrombosis associated with antiphospholipid antibodies in a patient with wegener granulomatosis.

P. D. de Groot, A. Voskuyl, S. Zweegman, 2007, Journal of clinical rheumatology : practical reports on rheumatic & musculoskeletal diseases.

Eradication of Helicobacter pylori Does Not Reduce the Incidence of Gastroduodenal Ulcers in Patients on Long‐term NSAID Treatment: Double‐Blind, Randomized, Placebo‐Controlled Trial

E. Kuipers, B. Dijkmans, W. Lems, 2007, Helicobacter.

Helicobacter pylori Eradication in Patients on Long-term Treatment With NSAIDs Reduces the Severity of Gastritis: A Randomized Controlled Trial

E. Kuipers, B. Dijkmans, W. Lems, 2009, Journal of clinical gastroenterology.

Incidence of clinically manifest ulcers and their complications in patients with rheumatoid arthritis

B. Dijkmans, W. Lems, K. Steen, 2001, Annals of the rheumatic diseases.

Questionnaire on NSAID Gastropathy among Dutch Rheumatologists

B. Dijkmans, W. Lems, K. Steen, 2000, Clinical Rheumatology.