Önsten, I., Åkesson, K. and Obrant, K. J. (1993) “Periarticular bone mineral content in rheumatoid arthritis and arthrosis of the hip: Dual photon X-ray absorptiometry in 53 cases”, Acta Orthopaedica, 64(5), pp. 530–532. doi: 10.3109/17453679308993685.