nicotine
addiction
air
ashtray
bronchitis
cancer
cigarettes
concept
cough
danger
death
diagnosis
dirty
disease
drug
filter
garbage
guy
harm
health
healthcare
human
illness
illustration
isolated
lung
male
man
mucus
narcotic
pathology
patient
person
pneumonia
respiratory
risk
sad
sick
smoke
smoking
stop
system
tabacco
thorax
tobacco
toxic
trash
treatment
unhappy