McCue, Marshall D <br/><br/>
The magnitude of the naturally occurring isotopic enrichment of 13C in  exhaled CO2 is directly proportional to exercise intensity in humans.  [electronic resource] 

 -  Comparative biochemistry and physiology. Part A, Molecular & integrative physiology  Jan 2015 
 - 164-71 p.  digital 
<br/><br/> Publication Type: Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>1531-4332 
<br/><br/><label>Standard No.: </label>10.1016/j.cbpa.2014.08.021  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Animals<br/>Basal Metabolism--physiology<br/>Breath Tests<br/>Carbon Dioxide--metabolism<br/>Carbon Isotopes<br/>Exercise<br/>Exhalation<br/>Female<br/>Heart Rate--physiology<br/>Humans<br/>Liver--metabolism<br/>Male<br/>Pulmonary Ventilation--physiology<br/>Rats<br/>White People<br/>Young Adult