Chavan KN, Mayadeo LN, Sontakke PN, Rathod HV. Spontaneous heterotopic pregnancy: a rare possibility. Int J Reprod Contracept Obstet Gynecol [Internet]. 2023 Jul. 28 [cited 2025 Oct. 14];12(8):2553-5. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/13190