PT - JOURNAL ARTICLE AU - Siu Yu Zoe Lau TI - Dear Mrs. P AID - 10.1503/cmaj.181235 DP - 2019 Feb 11 TA - Canadian Medical Association Journal PG - E168--E169 VI - 191 IP - 6 4099 - http://www.cmaj.ca/content/191/6/E168.short 4100 - http://www.cmaj.ca/content/191/6/E168.full SO - CMAJ2019 Feb 11; 191