Influence of folic acid and vitamin B12 supplementation on arsenic methylation: A double-blinded, placebo-controlled trial in Bangladeshi children oleh Irene Martinez-Morata, Faruque Parvez, Haotian Wu, Mahbubul Eunus, Jeff Goldsmith, Vesna Ilievski, Vesna Slavkovich, Olgica Balac, Chiugo Izuchukwu, Ronald A. Glabonjat, Tyler Ellis, Mohammad Nasir Uddin, Tariqul Islam, Anwar Sadat Arif, Alexander van Geen, Ana Navas-Acien, Joseph H. Graziano, Mary V. Gamble