Yeral, Ilkin, Yavuz Simsek, Doga Seckin, and Nuri Danisman. 2021. “Spontaneous Heterotopic Pregnancy With Term Delivery of a Live Infant”. Annals of Medical Research 18 (1):0054-0056. http://www.annalsmedres.org/index.php/aomr/article/view/3313.