PT - JOURNAL ARTICLE AU - Gershon, Andrea S. TI - The author responds to “Chronic obstructive pulmonary disease and Occam’s razor” AID - 10.1503/cmaj.733142 DP - 2017 Jul 17 TA - Canadian Medical Association Journal PG - E946--E946 VI - 189 IP - 28 4099 - http://www.cmaj.ca/content/189/28/E946.short 4100 - http://www.cmaj.ca/content/189/28/E946.full SO - CMAJ2017 Jul 17; 189