Kumar, S. P., Pratiksha, G., Poonam, G., Alka, S., Anju, H., Kataria, S., & Tandon, R. (2016). Ectopic pregnancy: a diagnostic dilemma. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 5(2), 367–370. https://doi.org/10.18203/2320-1770.ijrcog20160371