B vitamins and heart disease.
D015415:Biomarkers / Q000097:blood; D006331:Heart Diseases; D006710:Homocysteine / Q000097:blood; D006801:Humans; D008875:Middle Aged; D011736:Pyridoxine / Q000097:blood*
D015415:Biomarkers; D006710:Homocysteine; D011736:Pyridoxine