''' To estimate the serum vitamim vitamin B 12 & frequency of oro-mucosal changes in metformin & non- metformin treated type 2 diabetes mellitus patients -A comparative study ''''
''' ; estimate ; serum ; vitamim ; vitamin ; B ; 12 ; & ; frequency ; oro-mucosal ; changes ; metformin ; non- ; treated ; type ; 2 ; diabetes ; mellitus ; patients ; -A ; comparative ; study