PT - JOURNAL ARTICLE AU - Julie Roorda TI - Symptoms of the season AID - 10.1503/cmaj.121654 DP - 2012 Dec 11 TA - Canadian Medical Association Journal PG - 2023--2023 VI - 184 IP - 18 4099 - http://www.cmaj.ca/content/184/18/2023.short 4100 - http://www.cmaj.ca/content/184/18/2023.full SO - CMAJ2012 Dec 11; 184