Need to avoid bias in controlled trials.
Logan
S
S
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*
D013501:Surface-Active Agents