RT Journal Article SR Electronic T1 Risk of neonatal death is increased by birth outside the normal working week for singleton infants with cephalic presentation born at term JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 191 OP 192 DO 10.1136/ebm1136 VO 15 IS 6 A1 Edward F Bell YR 2010 UL http://ebm.bmj.com/content/15/6/191.abstract AB