RT Journal Article SR Electronic T1 Accuracy of registered causes of neonatal deaths in 1958. JF British Journal of Preventive & Social Medicine JO Br J Prev Soc Med FD BMJ Publishing Group Ltd SP 101 OP 105 DO 10.1136/jech.26.2.101 VO 26 IS 2 A1 J Fedrick A1 N R Butler YR 1972 UL http://jech.bmj.com/content/26/2/101.abstract AB