Patel, R M Early caffeine therapy and clinical outcomes in extremely preterm infants. [electronic resource] - Journal of perinatology : official journal of the California Perinatal Association Feb 2013 - 134-40 p. digital Publication Type: Comparative Study; Journal Article ISSN: 1476-5543 Standard No.: 10.1038/jp.2012.52 doi Subjects--Topical Terms: Bronchopulmonary Dysplasia--diagnosisCaffeine--therapeutic useCohort StudiesConfidence IntervalsDose-Response Relationship, DrugDrug Administration ScheduleDuctus Arteriosus, Patent--diagnosisFemaleFollow-Up StudiesHospital Mortality--trendsHumansInfant, Extremely PrematureInfant, NewbornIntensive Care Units, NeonatalLogistic ModelsMaleOdds RatioRetrospective StudiesRisk AssessmentSurvival RateTertiary Care CentersTreatment Outcome