Umana-Perez, Adriana, Novoa-Herran, Susana, Castro, Juan, Correa-Sanchez, Andres, Guevara, Valentina, Lopez-Gonzalez, David, AND Sanchez-Gomez, Myriam. " Role of the Insulin-like growth factor axis and the Transforming growth factor-β in the regulation of the placenta and the pathogenesis of Gestational Trophoblastic Diseases" Medical Research Archives [Online], Volume 8 Number 10 (29 October 2020)