Polymorphisms in MTHFR, MS and CBS Genes and Homocysteine Levels in a Pakistani Population Yakub, Mohsin ; Moti, Naushad ; Parveen, Siddiqa ; Chaudhry, Bushra ; Azam, Iqbal ; Iqbal, Mohammad Perwaiz Abstract Publication: PLoS ONE Pub Date: March 2012 DOI: 10.1371/journal.pone.0033222 Bibcode: 2012PLoSO...733222Y