Huu Phuoc, Mai, et al. “STUDIES ON THE CLINICAL AND SUBCLINICAL FEATURES IN ELDERLY PATIENTS WITH ABDOMINAL PAIN PRESENTED AT THE GERIATRIC DEPARTMENT, NGU HANH SON HOSPITAL, DA NANG CITY, VIET NAM”. Journal of Health and Aging, vol. 1, no. 5, Nov. 2025, pp. 74-79, https://doi.org/10.63947/bvtn.v1i5.11.