PT - JOURNAL ARTICLE AU - Duong, Diana AU - Vogel, Lauren TI - Booster uptake stalling as experts debate fourth COVID shots AID - 10.1503/cmaj.1095993 DP - 2022 Apr 11 TA - Canadian Medical Association Journal PG - E532--E533 VI - 194 IP - 14 4099 - http://www.cmaj.ca/content/194/14/E532.short 4100 - http://www.cmaj.ca/content/194/14/E532.full SO - CMAJ2022 Apr 11; 194