RT Journal Article SR Electronic T1 Aging and paediatric practice 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 F161 OP F161 DO 10.1136/fn.77.3.F161 VO 77 IS 3 A1 Malcolm L Chiswick A1 Harvey Marcovitch YR 1997 UL http://fn.bmj.com/content/77/3/F161.abstract AB