Nida ul Fatima, Rabia Anwar, Tahir Ahmed Baig, Khalid Mehmood, and Saadia Andleeb. “Association of Hepatitis E Seropositivity and Altered Progesterone Levels in Pregnant Women of Low Socioeconomic Status from Capital Region of Pakistan”. Journal of the Pakistan Medical Association, Oct. 2020, pp. 1-14, doi:10.47391/JPMA.03-335.