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Oleg Volchenko. Treatment of patients with acute cholangitis using minimally invasive surgical intervention : Доктор філософії : spec.. 222 - Медицина : presented. 2025-02-21; popup.evolution: o; State institution "National scientific center of surgery and transplantation named after O.O. Shalimov" to National academy of medical sciences of Ukraine. – Київ, 0825U000640.