Malik J, Atiq U, Hassan Naveed M, Ahmad S, Ahmad H, Roohi N. Causes and Consequences of Preterm Birth, A Systematic Review: Causes and Consequences of PTB. PJHS-Lahore [Internet]. 2022 Dec. 31 [cited 2024 Nov. 24];3(07):230-9. Available from: https://mail.thejas.com.pk/index.php/pjhs/article/view/193