RT Journal Article SR Electronic T1 Human Heredity JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 190 OP 191 DO 10.1136/adc.38.198.190-b VO 38 IS 198 YR 1963 UL http://adc.bmj.com/content/38/198/190.3.abstract AB