1. APGO medical student educational objectives 10th edition Faculty version

2. APGO medical student basic science teaching script on Multifetal gestation

3. Beckman CRB et al. Obstetrics and Gynecology. 8th ed. Philadelphia: Wolters Kluwer, 2019

4. ACOG practice bulletin #144: Multifetal gestations: twin, triplet, and higher-order multifetal pregnancies. May 2014