Ashraf, Shazia, Safeena Amjad, Hamid Jan Bin Jan Mohamed, Soo Kah Leng, and Rakshanda Rehman. “A Conceptual Paper on Lahore-Pakistan Pregnancy Cohort Study”. International journal of health sciences 6, no. S5 (June 28, 2022): 5673–5681. Accessed May 21, 2025. https://sciencescholar.us/journal/index.php/ijhs/article/view/9883.