Majid, Shamim, and Rehana Rahim. “Twin Pregnancy With an Intra Abdominal Foetus of 28 Weeks Gestation”. Journal of Postgraduate Medical Institute 12, no. 1 (September 8, 2011). Accessed April 20, 2024. https://www.jpmi.org.pk/index.php/jpmi/article/view/608.