Ashraf, S., Amjad, S., Mohamed, H. J. B. J., Leng, S. K. and Rehman, R. (2022) “A conceptual paper on Lahore-Pakistan pregnancy cohort study”, International journal of health sciences, 6(S5), pp. 5673–5681. doi: 10.53730/ijhs.v6nS5.9883.