RT Journal Article SR Electronic T1 Follow up studies: a case for a standard minimum data set JF Archives of Disease in Childhood - Fetal and Neonatal Edition JO Arch Dis Child Fetal Neonatal Ed FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP F61 OP F63 DO 10.1136/fn.76.1.F61 VO 76 IS 1 A1 Johnson, Ann YR 1997 UL http://fn.bmj.com/content/76/1/F61.abstract AB