Citation:Schiffman M, Castle PE, Jeronimo J, Rodriguez AC, Wacholder S 2007
From National Cancer Control Policy
Schiffman M, Castle PE, Jeronimo J, Rodriguez AC, Wacholder S. Human papillomavirus and cervical cancer. Lancet 2007 Sep 8;370(9590):890-907 Available from: http://www.ncbi.nlm.nih.gov/pubmed/17826171.
Critical appraisals