RT Journal Article SR Electronic T1 Congenital heart block and hypothyroidism JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 828 OP 828 DO 10.1136/adc.53.10.828-a VO 53 IS 10 A1 C. M. McCue A1 M. E. Mantakas YR 1978 UL http://adc.bmj.com/content/53/10/828.2.abstract AB