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Author(s): Katz, G. I. Title: [Bradycardia in sportsmen] Subject(s): Heart rate Variation: Endocrine agents Journal Title Abbreviation: Odess. med. J. Date of Publication: 1928 Pagination: 3: 716–8. Language: Ukranian Type of Resource: Analytic Series/Volume/Page: Series 4/Volume 7/Page 361