Maradona, Isikhuemen, et al. “Case Report of Interstitial Ectopic Pregnancy Presenting With Ultrasound Diagnosis of Normal Intrauterine Pregnancy”. Niger Delta Journal of Medical Sciences (NDJMS), vol. 2, no. 3, Aug. 2025, pp. 71-74, https://ndjms.ndu.edu.ng/index.php/home/article/view/36.