Gebuhr, Peter, Jens Sletgård, Jesper Dalsgård, Michael Soelberg, Kjell Keisu, Antero Hänninen, and Michael Crawford. 1996. “Heterotopic Ossification After Hip arthroplasty:A Randomized Double-Blind Multicenter Study of Tenoxicam in 147 Hips”. Acta Orthopaedica 67 (1):29-32. https://doi.org/10.3109/17453679608995604.