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To the Editor
Recently Cramer et al1 demonstrated very important observation on troponin level increase after exercise in patients with hypertrophic cardiomyopathy (HCM). Several concerns regarding to methodology of their study should be explained. Authors decided to perform only one measurement of troponin level at 6 hours after end of exercise. In our opinion, …
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.
Patient consent for publication Not required.
Provenance and peer review Not commissioned; internally peer reviewed.
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