vitamins and diseases

http://www.civilsdaily.com/blog/list-of-diseases-by-vitamins-and-nutrient-deficiency-and-vitamin-sources/
http://www.gkduniya.com/deficiency-diseases-vitamin

https://www.pmfias.com/vitamins-minerals-deficiency-diseases-food-sources-of-vitamins-minerals/
http://www.medindia.net/drug-price/vitamin-b12-combination.htm