Wajanavisit, Wiwat. “Outcome of Early Hip Fracture Surgery in Elderly Patients in Ramathibodi Hospital: A Prospective Cohort Study”. Ramathibodi Medical Journal 36, no. 1 (March 30, 2013): 1–2. Accessed January 29, 2023. https://he02.tci-thaijo.org/index.php/ramajournal/article/view/102030.