Maron, Bradley A.Cockrill, Barbara A.Systrom, David M.Waxman, Aaron2019-01-042013-03-12Maron, Bradley A., Barbara A. Cockrill, Aaron B. Waxman, and David M. Systrom. 2013. “The Invasive Cardiopulmonary Exercise Test.” Circulation 127 (10): 1157–64. https://doi.org/10.1161/circulationaha.112.104463.0009-73221524-4539http://nrs.harvard.edu/urn-3:HUL.InstRepos:37963728en-USPhysiology (medical)Cardiology and Cardiovascular MedicineJournal Article2019-01-0410.1161/circulationaha.112.104463