Boonsawat, N.; Suraarunsumrit, P.; Pitiyarn, S.; Pengsorn, N.; Srinonprasert, V.; Mandee, S.; Wongviriyawong, T. Reliability and Validity of the Thai Version of the PAINAD Scale: An Extended Application of Pain Assessment in the Moderately Severe Stage of Dementia. Siriraj Med J 2025, 77, 12-21.