Kolchin, S P [Mechanism of development of training bradycardia]. [electronic resource] - Fiziologicheskii zhurnal SSSR imeni I. M. Sechenova May 1975 - 758-62 p. digital Publication Type: English Abstract; Journal Article ISSN: 0015-329X Subjects--Topical Terms: Acetylcholine--pharmacologyAdaptation, PhysiologicalAnimalsAutonomic Nervous System--drug effectsDose-Response Relationship, DrugHeart--innervationHeart Rate--drug effectsMaleMiceNorepinephrine--pharmacologyPhysical ExertionProcaine--pharmacologyRats