C-reactive protein-to-albumin ratio improves prediction of 6-month major adverse limb events in diabetic foot ulcers: a retrospective cohort study. - Aihetaier A; Qiao W; Mohetaer M; Simayi M; Aierken A; Aili W; Cao H; Maimaitituerxun M; Liang S; Yuan H; Li C (Frontiers in endocrinology, 2026)