Publication info: Int J Epidemiol. 2010 Feb; 39(1):52-9.PMID: 19332502External link: http://www.ncbi.nlm.nih.gov/pubmed/19332502Publication date: February, 2010Authors: Pourshams A, Khademi H, Malekshah AF, Islami F, Nouraei M, Sadjadi AR, Jafari E, Rakhshani N, Salahi R, Semnani S, Kamangar F, Abnet CC, Ponder B, Day N, Dawsey SM, Boffetta P, Malekzadeh RPublication type: Paper