Villar, J Meta-analyses in systematic reviews of randomized controlled trials in perinatal medicine: comparison of fixed and random effects models. [electronic resource] - Statistics in medicine Dec 2001 - 3635-47 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0277-6715 Standard No.: 10.1002/sim.1096 doi Subjects--Topical Terms: Chi-Square DistributionConfidence IntervalsFemaleHumansInfant, NewbornMeta-Analysis as TopicModels, StatisticalNeonatology--methodsPregnancyPublication BiasRandomized Controlled Trials as Topic