%0 Journal Article %T Vitamin D and diabetic foot ulcer: a systematic review and meta-analysis %A Chaoyin Jiang %A Hua Chen %A Jiezhi Dai %A Yimin Chai %J Archive of "Nutrition & Diabetes". %D 2019 %R 10.1038/s41387-019-0078-9 %X Flow chart of study selection in the systematic revie %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6411880/