Outcomes comparison between nsaid and placebo in the occurrence of heterotopic ossification after hip surgery: a systematic review. World Journal of Current Medical and Pharmaceutical Research, India, v. 5, n. 5, p. 228–231, 2023. DOI: 10.37022/wjcmpr.v5i5.297. Disponível em: https://wjcmpr.org/index.php/journal/article/view/297. Acesso em: 21 apr. 2026.