Health (2) santé (1) Salvador (1) San Salvador (1) Employment (1) Wounds and injuries (1) Agriculture (1) Prevention (1) Accidents (1) Methods (1) Exhibitions (1) Year (1) Turnover (Business) (1) Tobacco use (1) Stress (Physiology) (1) State, The (1) Smoking (1) Risk (1) Middle age (1) Mass media (1) Loss of consciousness (1) Licenses (1) Health (1) Depression, Mental (1) Cigarette smokers (1) Blood--Sedimentation (1) Americans (1) Agricultural laborers (1) Methods (1) Nicotine addiction (1)