Niaz, F., Z. Wahid, I. Ahmed, and S. Nasreen. “Frequency of Specific Dermatoses of Pregnancy in a Tertiary Care Hospital”. Journal of Pakistan Association of Dermatologists, vol. 23, no. 3, Dec. 2016, pp. 256-61, http://www.jpad.com.pk/index.php/jpad/article/view/309.