title: What we talk about when we talk about randomized controlled trials.
authors.affiliation: Respiratory Disease and Lung Function Unit, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy.
authors.forename: Alfredo
authors.initials: A
authors.lastname: Chetta
authors.forename: Dario
authors.initials: D
authors.lastname: Olivieri
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D018579:Patient Selection; D064792:Pragmatic Clinical Trials as Topic / Q000592:standards*; D029424:Pulmonary Disease, Chronic Obstructive / Q000503:physiopathology*; D016032:Randomized Controlled Trials as Topic / Q000592:standards*