title: Need to avoid bias in controlled trials.
authors.forename: S
authors.initials: S
authors.lastname: Logan
mesh_terms: D015982:Bias; D003627:Data Interpretation, Statistical; D006801:Humans; D007231:Infant, Newborn; D016032:Randomized Controlled Trials as Topic / Q000592:standards*; D012127:Respiratory Distress Syndrome, Newborn / Q000188:drug therapy; D013501:Surface-Active Agents / Q000627:therapeutic use*
chemical_list: D013501:Surface-Active Agents