A J Swaak

Tear fluid analysis in primary Sjögren's syndrome.

P T de Jong, N J van Haeringen, H M Markusse, 1993, Clinical and experimental rheumatology.

Ophthalmological examinations of patients with primary Sjögren's syndrome selected from a rheumatological practice.

P T de Jong, N J van Haeringen, H M Markusse, 1992, British journal of rheumatology.

Systemic lupus erythematosus. Disease outcome in patients with a disease duration of at least 10 years: second evaluation

R Fischer, A J Swaak, Z Domljan, 2001, Lupus.

Systemic lupus erythematosus: clinical features in patients with a disease duration of over 10 years, first evaluation.

R Fischer, A J Swaak, Z Domljan, 1999, Rheumatology.