PT - JOURNAL ARTICLE AU - Cheng, Anita TI - Holding on AID - 10.1503/cmaj.220148 DP - 2022 Jun 27 TA - Canadian Medical Association Journal PG - E879--E880 VI - 194 IP - 25 4099 - http://www.cmaj.ca/content/194/25/E879.short 4100 - http://www.cmaj.ca/content/194/25/E879.full SO - CMAJ2022 Jun 27; 194