C.J. Haagsma

Validation of rheumatoid arthritis improvement criteria that include simplified joint counts

Anke M. van Gestel, C.J. Haagsma, Piet L. C. M. van Riel · Arthritis & Rheumatism · 1998 · 819 citations

Medicine, Clinical Sciences, Internal Medicine +7

Hyperimmunoglobulinemia D and Periodic Fever Syndrome

Joost P.H. Drenth, C.J. Haagsma, J.W.M. van der Meer · Medicine · 1994 · 396 citations

Life Sciences, Immunology, Internal Medicine +5

ACR and EULAR improvement criteria have comparable validity in rheumatoid arthritis trials. American College of Rheumatology European League of Associations for Rheumatology.

Anke M. van Gestel, Jennifer J. Anderson, Piet L. C. M. van Riel et al. · PubMed · 1999 · 250 citations

Medicine, Clinical Sciences, Internal Medicine +17

Combination of sulphasalazine and methotrexate versus the single components in early rheumatoid arthritis: a randomized, controlled, double-blind, 52 week clinical trial

C.J. Haagsma, P L van Riel, Anja J. de Jong et al. · Lara D. Veeken · 1997 · 234 citations · Full text

Medicine, Clinical Sciences, Pharmacotherapy +13

Bioavailability of higher dose methotrexate comparing oral and subcutaneous administration in patients with rheumatoid arthritis.

Monique Hoekstra, C.J. Haagsma, Cees Neef et al. · PubMed · 2004 · 214 citations

Pharmacy, Pharmacokinetics, Pharmacology +14