LEVOCARNITINE FOR THE TREATMENT OF POLYMORBID PATIENTS Статья Pereverzev A.P., Shevchenko D.A., Filippova A.V., Kirichenko A.A., Krotkova I.F., Ostroumoval O.D. Rational Pharmacotherapy in Cardiology. Stolichnaya Izdatelskaya Kompaniya. Том 16. 2020. С. 139-146