1. Co-carcinogenesis: Human Papillomaviruses, Coal Tar Derivatives, and Squamous Cell Cervical Cancer
    Harry W. Haverkos et al, 2017, Frontiers in Microbiology CrossRef
  2. Modifiable Risk Factors Associated with Clearance of Type-Specific Cervical Human Papillomavirus Infections in a Cohort of University Students
    Harriet Richardson et al, 2005, Cancer Epidemiology, Biomarkers & Prevention CrossRef