Kitiyanan, Thana, and Yawana Tanapat. 2017. “Prevalence of Women Seeking Health Care Services at Phramongkutklao Hospital Who Never Had a Pap Smear or Whose Last Pap Smear Interval Was Equal or More Than Three Years”. Thai Journal of Obstetrics and Gynaecology 15 (1). Bangkok, Thailand:21-25. https://he02.tci-thaijo.org/index.php/tjog/article/view/82776.