DOI: 10.1055/s-00000009

American Journal of Perinatology

References

Norman M, Hallberg B, Abrahamsson T. et al.
Association between year of birth and 1-year survival among extremely preterm infants in Sweden during 2004-2007 and 2014-2016.

JAMA 2019;
321 (12) 1188-1199

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