RT Journal Article SR Electronic T1 Research Methodology and Needs in Perinatal Studies JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 106 OP 106 DO 10.1136/adc.42.221.106 VO 42 IS 221 YR 1967 UL http://adc.bmj.com/content/42/221/106.1.abstract AB