Muangkhoua S, Kitidamrongsuk P, Viwatwongkasem C, Stapanavatr W. Survival Analysis of Time to Amputation Event Data in Patients with Severe Foot Problems in Vascular Practice. Vajira Med J [internet]. 2016 Sep. 1 [cited 2026 Apr. 22];60(3):159-70. available from: https://he02.tci-thaijo.org/index.php/VMED/article/view/192596