https://www.tdrf.org.tw/2018/03/21/knowledge02-5/
https://www1.ndmctsgh.edu.tw/pharm/pic/medinsert/005GLU04.pdf
https://www.chimei.org.tw/main/cmh_department/59012/info/5500/A5500249.html
https://kellychang2713.blogspot.com/2024/12/new-guideline-advises-metformin-to.html