TY - GEN AU - Iakovleva,I N AU - Grishko,F I AU - Ratushnaia,A N AU - Nagornaia,A M AU - Timofeeva,N T TI - [Hygienic evaluation of the study regimen for adolescents in secondary vocational and technical schools for agricultural machinery operators] SN - 0016-9900 PY - 1977///0125 KW - Adolescent KW - Agriculture KW - Cardiovascular Physiological Phenomena KW - Higher Nervous Activity KW - Humans KW - School Health Services KW - Task Performance and Analysis KW - Time Factors KW - Ukraine KW - Vocational Education N1 - Publication Type: English Abstract; Journal Article ER -