A study into neonatal care examined data concerning more than 20,000 premature babies born at 165 NHS neonatal units in England between January 2009 and December 2011.
- Almost 18,000 were born when the mother was 27-32 weeks pregnant
- The rest were born before 27 weeks.
Infants were less likely to die if they were admitted to a high-volume neonatal unit at the hospital where they were born, the scientists claimed.
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