Promwee, S., & Sasat, S. (2026). The Effect of Patient-Centered Care Combined with Abdominal Massage Program on Constipation in Frail Older Adults in an Orthopedic ward. Journal of The Royal Thai Army Nurses, 27(1), 222–232. retrieved from https://he01.tci-thaijo.org/index.php/JRTAN/article/view/275131