BibTex format
@article{Helenius:2020:10.1097/01.ogx.0000657356.80705.4d,
author = {Helenius, K and Longford, N and Lehtonen, L and Modi, N and Gale, C},
doi = {10.1097/01.ogx.0000657356.80705.4d},
journal = {Obstetrical and Gynecological Survey},
pages = {145--147},
title = {Association of early postnatal transfer and birth outside a tertiary hospital with mortality and severe brain injury in extremely preterm infants: observational cohort study with propensity score matching},
url = {http://dx.doi.org/10.1097/01.ogx.0000657356.80705.4d},
volume = {75},
year = {2020}
}