Text and Email Messaging for Increasing Human Papillomavirus Vaccine Completion among Uninsured or Medicaid-insured Adolescents in Rural Eastern North Carolina. - Richman, Alice R.; Torres, Essie; Wu, Qiang; Carlston, Lauren; O'Rorke, Shawna; Moreno, Carmen; Olsson, John (Journal of Health Care for the Poor & Underserved, 2019)