Rotator Interval vs Posterior Approach Ultrasound-guided Corticosteroid Injections in Primary Frozen Shoulder: A Meta-analysis of Randomized Controlled Trials.

Arrambide-Garza FJ, Guerrero-Zertuche JT, Alvarez-Villalobos NA, Quiroga-Garza A, Espinosa-Uribe A, Vilchez-Cavazos F, Salinas-Alvarez Y, Rivera-Perez JA, Elizondo-Omaña RE.