Chakraborty, M. K., Gainder, S., Saha, S. C., & Bagga, R. (2021). A novel approach in non-surgical management of tubal ectopic: combination of minimally invasive technique under ultrasound guidance with systemic methotrexate based on initial beta-HCG levels. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 10(7), 2606–2612. https://doi.org/10.18203/2320-1770.ijrcog20212331