title: Passive smoking could still represent a risk factor in Mexican children with asthma.
authors.affiliation: Medical School, Universidad Peruana de Ciencias Aplicadas, Lima 27, Peru.
authors.forename: Aranza Pinedo
authors.initials: AP
authors.lastname: Pichilingue
authors.forename: Javier Quijano
authors.initials: JQ
authors.lastname: Ono