PT - JOURNAL ARTICLE AU - Webster, Paul Christopher TI - Muddling thru models AID - 10.1503/cmaj.109-4042 DP - 2011 Dec 13 TA - Canadian Medical Association Journal PG - E1283--E1284 VI - 183 IP - 18 4099 - http://www.cmaj.ca/content/183/18/E1283.short 4100 - http://www.cmaj.ca/content/183/18/E1283.full SO - CMAJ2011 Dec 13; 183