1. Haugenberg G, Orstovik RE, Uhlig T, Falch JA, Halse JI, Kvien TK. Clinical decision rule in rheumatoid arthritis: do they identify patients at high risk for osteoporosis? Testing clinical criteria in a population based cohort of patients with rheumatoid arthritis recruited from the Oslo Rheumatoid Arthritis Register. Ann Rheum Dis. 2002;61:12085–9.
2. Hauser B, Riches PL, Wilson JF, Horne AE, Ralston SH. Prevalence and clinical prediction of osteoporosis in a contemporary cohort of patients with rheumatoid arthritis. Rheumatology. 2014;53(10):1759–66.
3. Sinigaglia L, Nervetti A, Mela Q, Bianchi G, Del Puente A, Di Munno O, et al. A multicenter cross sectional study on bone mineral density in rheumatoid arthritis. Italian Study Group on Bone Mass in Rheumatoid Arthritis. J Rheumatol. 2000;27(11):2582–9.
4. Reid DM, Kennedy NS, Nicoll J, Smith MA, Tothill P, Nuki G. Total and peripheral bone mass in patients with psoriatic arthritis and rheumatoid arthritis. Clin Rheumatol. 1986;5:372–8.
5. Haugenberg G, Uhlig T, Falch JA, Halse JI, Kvien TK. Bone mineral density and frequency of osteoporosis in female patients with rheumatoid arthritis. Arthritis Rheum. 2000;43:522–30.