Obure, J., O. Olola, B. Swai, P. Mlay, G. Masenga, and D. Walmer. “Prevalence and Severity of Cervical Squamous Intraepithelial Lesion in a Tertiary Hospital in Northern Tanzania”. Tanzania Journal of Health Research, vol. 11, no. 4, Jan. 2010, doi:10.4314/thrb.v11i4.50143.