S. Shukla, S. Dankher, V. Chandraul, and M. Jaiswal, “Persistent low-level β-hCG with a hypervascular intrauterine mass after medical abortion mimicking GTN: a diagnostic dilemma”, Int J Reprod Contracept Obstet Gynecol, vol. 15, no. 7, pp. 2797–2803, Jun. 2026.