Sarkis, K. S., M. B. Salvador, M. M. Pinheiro, R. G. Silva, C. A. Zerbini, and L. A. Martini. “Association Between Osteoporosis and Rheumatoid Arthritis in Women: A Cross-Sectional Study”. São Paulo Medical Journal, vol. 127, no. 4, July 2009, pp. 216-22, https://periodicosapm.emnuvens.com.br/spmj/article/view/1890.