Practice-based outcomes research: crucial, feasible, and neglected.
Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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D002986:Clinical Trials as Topic; D003362:Cost-Benefit Analysis; D006801:Humans; D011663:Pulmonary Surfactants / Q000627:therapeutic use*; D012107:Research Design; D016896:Treatment Outcome; D014481:United States; D014486:United States Food and Drug Administration
D011663:Pulmonary Surfactants