00480nas a2200157   4500000000100000008004100001100001400042700001400056700004200070700001500112700001500127700001500142245014600157300001200303490000700315       2002                            d1 aTonkin A.1 aOhkubo T.1 aPACIFIC Study Group Writing Committee1 aWilcken D.1 aNeal Bruce1 aMacmahon S00aDose-dependent effects of folic acid on plasma homocysteine in a randomized trial conducted among 723 individuals with coronary heart disease  a1509-150 v23