“Validation of the Short Form of the Geriatric Depression Scale in the Geriatric Outpatient Clinic at the Hospital Nacional Cayetano Heredia”. ACTA MEDICA PERUANA 23, no. 3 (May 22, 2024): 144–147. Accessed December 25, 2024. https://amp.cmp.org.pe/index.php/AMP/article/view/1179.