TY JOUR TI CHOLELITHIASIS AND ACUTE CHOLECYSTITIS DURING THE PANDEMIC OF THE NEW CORONAVIRUS INFECTION COVID-19 KW cholecystitis KW COVID-19 pandemic KW doskovidny period KW planned operations KW urgent operations KW laparo-scopic cholecystectomy JO CASPIANJOURNALOF MEDICINE AND PHARMACY AU Us, O.A. AU Panin, S.I. AU Chepurina, N.G. AU Poluosmak, A.B. AU Kosivtsov, O.A. AU Bublikov, A.E. PY 2022 IS 3 PB Astrakhan State Medical University