title: [The functional state of the sympathoadrenal system and the autonomic regulation of the cardiac rhythm in younger schoolchildren].
authors.forename: F G
authors.initials: FG
authors.lastname: Sitdikov
authors.forename: M V
authors.initials: MV
authors.lastname: Shaĭkhelislamova
authors.forename: A A
authors.initials: AA
authors.lastname: Sitdikova
mesh_terms: D000222:Adaptation, Physiological; D000302:Adrenal Cortex / Q000378:metabolism / Q000502:physiology*; D002395:Catecholamines / Q000652:urine; D002648:Child; D003627:Data Interpretation, Statistical; D005260:Female; D006321:Heart / Q000294:innervation / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D012737:Sex Factors; D013564:Sympathetic Nervous System / Q000502:physiology*
chemical_list: D002395:Catecholamines