vitamin B "Vitamins and minerals – B vitamins and folic acid" folic acid B vitamins and folic acid one of the B vitamins NHS Choices (accessed 10/3/2012) "Vitamins and minerals – B vitamins and folic acid" Folic acid supplements Vitamins and minerals – B vitamins and folic acid NHS - http://www.nhs.uk/Conditions/vitamins-minerals/... NHS - http://www.nhs.uk/Conditions/vitamins-minerals/... Folic acid "Vitamins and minerals – B vitamins and folic acid" Vitamin B B vitamins and folic acid vitamin B2 NHS website