title: [Commentary: complexities in the evaluation of complex interventions].
authors.affiliation: Escuela Valenciana de Estudios de la Salud, 46017 Valencia, España. peiro_bor@gva.es
authors.forename: Salvador
authors.initials: S
authors.lastname: Peiró
mesh_terms: D016861:Cyclooxygenase Inhibitors / Q000627:therapeutic use; D016527:Drug Costs; D011307:Drug Prescriptions; D004363:Drug Utilization; D006801:Humans; D012107:Research Design
chemical_list: D016861:Cyclooxygenase Inhibitors