Ovianti, N. and Nugrahani, N.A. 2023. The effect of physical therapy and modalities on frozen shoulder patients at Baptist Hospital Batu: a retrospective study. Surabaya Physical Medicine and Rehabilitation Journal. 5, 2 (Aug. 2023), 91–104. DOI:https://doi.org/10.20473/spmrj.v5i2.38052.