PT  - JOURNAL ARTICLE
AU  - Wirtschafter, David D.
TI  - The inverse groups?
AID  - 10.1503/cmaj.109-2016
DP  - 2009 Sep 15
TA  - Canadian Medical Association Journal
PG  - 399--399
VI  - 181
IP  - 6-7
4099  - http://www.cmaj.ca/content/181/6-7/399.1.short
4100  - http://www.cmaj.ca/content/181/6-7/399.1.full
SO  - CMAJ2009 Sep 15; 181