Choice of primary outcomes in randomised trials and systematic reviews evaluating interventions for preterm birth prevention: a systematic review

Meher, S ; Alfirevic, Z

BJOG : an international journal of obstetrics and gynaecology, 2014-09, Vol.121 (10), p.1188-1194 [Periódico revisado por pares]

England: Wiley Subscription Services, Inc

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