Interventions for treating posterior cruciate ligament injuries of the knee in adults: A systematic review and meta-analysis protocol - Jorge Sayum Filho; Marcel Jun Sugawara Tamaoki; Rogerio Teixeira de Carvalho; Álvaro Nagib Atallah; Fabio Teruo Matsunaga; Flávio Faloppa; João Carlos Belloti (PLoS ONE, 2025)