For citations:
Ivanova A.K., Dinikin M.S., Orlova R.V. Carcinoid heart disease in a patient with a neuroedocrine tumor of the gastrointestinal tract. Where to begin? Clinical Case in Oncology. 2025;3(1):17-25. (In Russ.) https://doi.org/10.62546/3034-1477-2025-3-1-17-25