Calf and mid-upper arm circumference as screening tools for sarcopenia in elderly diabetics: evidence from primary healthcare centers - Alif Adlan Zulizar; Nabil Hajar; Lukman Faishal Fatharani; Gita Nurtaningtyas Aini; Tsaqifatul A’izza; Mickhael Sandyka; Muhamad Zidan Akmal Hisani; Bagas Iqbal Pahlevi; Thoha Ibnu Muwaffaq (Folia Medica, 2026)