[1]
U. Dorn, C. Grethen, H. Effenberger, H. Berka, T. Ramsauer, and T. Drekonja, “Indomethacin for prevention of heterotopic ossification after hip arthroplasty: A randomized comparison between 4 and 8 days of treatment”, ActaO, vol. 69, no. 2, pp. 107–110, Jan. 1998.