Children (3) Ozone (2) Health (2) Asthmatics (2) Asthma (2) Salud (2) Asma (2) Niños (2) temps (durée) (1) gare (1) ozone (1) modèle (1) matériau (1) exposition (1) ville (1) enfant (1) ordre (1) Mexico (1) Children (1) Methods (1) Minors (1) Time (1) Stocks (1) Respiratory organs--Diseases (1) Respiratory organs (1) Proxy (1) Population (1) Pollutants (1) Parents (1) Order (1)