RT Journal Article SR Electronic T1 Hookah smoking and COVID-19: call for action JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E462 OP E462 DO 10.1503/cmaj.75332 VO 192 IS 17 A1 Skand Shekhar A1 Fady Hannah-Shmouni YR 2020 UL http://www.cmaj.ca/content/192/17/E462.abstract AB