The effectiveness of neuromuscular electrical stimulation on pain, function, and quadriceps muscle strength in adults with patellofemoral pain: A systematic review and meta-analysis. - Abdelhamed, Ahmed Ibrahim; Mortada, Hossam; Hendawy, Ahmed; Elfeky, Amr; Kamel, Roshdy M.; Elshennawy, Shorouk (BMC Musculoskeletal Disorders, 2025)