The response to amyl nitrite inhalation and the Valsalva maneuver was re-evaluated along with the exercise response at a level of 25 watts. All determinations of cardiac output were performed by the ...
Data sources MEDLINE, EMBASE, PubMed, CINAHL, SPORTDiscus, Cochrane Library and grey literature sources were searched from inception to November/December 2020. Study eligibility criteria Observational ...
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