Javed, Sumaira, et al. “ROLE OF PAPANICOLAOU SMEAR IN MAPPING OUT CERVICAL EPITHELIAL MORPHOLOGY IN WOMEN WITH INFERTILITY: MODIFIED BETHESDA CLASSIFICATION”. Journal of Ayub Medical College Abbottabad, vol. 31, no. 4, Sept. 2019, pp. 558-62, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/6626.