Effects of Manual Therapy and Strengthening Exercise on Pain in Patients with Knee Osteoarthritis: A Systematic Review and Meta-Analysis. - Serrano-García, Beatriz; Martínez-Cepa, Carmen Belén; Forriol, Francisco; Angulo-Díaz-Parreño, Santiago; Mesa-Jiménez, Juan Andrés; Zuil-Escobar, Juan Carlos (Applied Sciences (2076-3417), 2025)