Prevalencia de infección nosocomial en hospitales universitarios de La Habana, Cuba

Sur la frequence de leptospirose en Iran

Sur la fréquence de leptospirose en Iran

Existence de la brucellose en Iran. Isolement de Brucella abortus

Sur la fréquence de la leptospirose en Iran

Cambios en la prevalencia de asma en la población española del Estudio de Salud Respiratoria de la Comunidad Europea (ECRHS-II)

half of the 20th century has not been evenly distributed according to recent surveys. We assessed changes in the prevalence of asthma after a period of 9 to 10 years in a cohort of young adults in the Spanish arm of the European Community Respiratory Health Survey (ECRHS). MATERIAL AND METHODS: The ECRHS-II is a multicenter cohort study taking place in 27 centers around Europe, with Spanish cen...