For citations:

Omelchenko M.A. Negative symptoms at the prodromal stage of schizophrenia at a young age (current problems of diagnostics and treatment). V.M. BEKHTEREV REVIEW OF PSYCHIATRY AND MEDICAL PSYCHOLOGY. 2019;(4-2):41-48. (In Russ.) https://doi.org/10.31363/2313-7053-2019-4-2-41-48