Uthaicharatratsame, MD, C. , Sahajarupat, MD, S. and Adullayathum, MD , T. 2022. Accuracy and Reliability of Combining a Smartphone and a Digital Angle Ruler Technique to Assist Acetabular Cup Placement: A Pelvic Model Study. Journal of Southeast Asian Orthopaedics. 43, 3-4 (Mar. 2022), 8–14.