PT - JOURNAL ARTICLE AU - Andresen, Margot TI - Macrolides resistance rising AID - 10.1503/cmaj.061448 DP - 2007 Jan 16 TA - Canadian Medical Association Journal PG - 159--159 VI - 176 IP - 2 4099 - http://www.cmaj.ca/content/176/2/159.short 4100 - http://www.cmaj.ca/content/176/2/159.full SO - CMAJ2007 Jan 16; 176