Fuangkaew, Aphinya, Somsak Suthutvoravut, Sanya Patrachai, and Vachira Singhakajen. 2009. “Screening of Cervical Cancer by Conventional Papanicolaou Smear and a Liquid-Based Thin-Layer (Thin Prep) Smear”. Ramathibodi Medical Journal 32 (4):158-66. https://he02.tci-thaijo.org/index.php/ramajournal/article/view/175424.