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Peeters, H R., M. Jongen-Lavrencic, A N. Raja, H S. Ramdin, G. Vreugdenhil, F C. Breedveld, και A J. Swaak. "Course and Characteristics of Anaemia in Patients With Rheumatoid Arthritis of Recent Onset." Ann Rheum Dis 1996.

Peeters, H R., et al. "Course and Characteristics of Anaemia in Patients With Rheumatoid Arthritis of Recent Onset." Ann Rheum Dis 1996.