1) Bied, J. C., Malsh, C. et al.: La mélorhéostose ches l'ádulte. Ravue du Rhumatisme., 43: 193-199, 1976.
2) Bijovoet, O. L. M., Nollen, A. J. G. et al. Effect of diphosphonate on para-articular ossification after total hip replacement. Acta orthop. second., 45: 926-934, 1974.
3) Finerman, G. A. M.. Stover, S. L.: Heterotopic ossification following hip replacement or spinal corcl injury. Two clinical studies with EHDP. Metab. Bone Dis. & Rel., 4 & 5: 337-342, 1981.
5) Hentzer, B. Jacobsen, H. H. et al.: Fibrodysplasia (Myositis) ossificans progressiva treated with disodium etidronate. Clin, Radiol, 29: 69-75, 1978.