PT - JOURNAL ARTICLE AU - Ka Shing Cheung AU - Ivan F.N. Hung AU - Wai K. Leung TI - Association between angiotensin blockade and COVID-19 severity in Hong Kong AID - 10.1503/cmaj.75865 DP - 2020 Jun 08 TA - Canadian Medical Association Journal PG - E635--E635 VI - 192 IP - 23 4099 - http://www.cmaj.ca/content/192/23/E635.short 4100 - http://www.cmaj.ca/content/192/23/E635.full SO - CMAJ2020 Jun 08; 192