5,009 followers
7,456/ Korea (est. current tobacco smoking age 15+ was 20.1% in 2020) smoking: C=current, P=previous Of 24 hospitalized w/ Covid-19 who developed pneumothorax/pneumomediastinum (P/P), C=0 & P=33.3% 48 controls (hosp'd w/ C-19 w/o P/P): C=4.2% &