title: [On Quality of clinical trials published in Spain on asthma in comparison to trials in English language journals].
authors.forename: J A
authors.initials: JA
authors.lastname: Pérez Fernández
mesh_terms: D002986:Clinical Trials as Topic / Q000592:standards*; D005060:Europe; D006801:Humans; D010506:Periodicals as Topic / Q000706:statistics & numerical data*; D011643:Publishing / Q000706:statistics & numerical data*; D011786:Quality Control; D013030:Spain; D011795:Surveys and Questionnaires