RT Journal Article SR Electronic T1 Blood Formation in Infancy JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 128 OP 133 DO 10.1136/adc.27.132.128 VO 27 IS 132 A1 Douglas Gairdner A1 John Marks A1 Janet D. Roscoe YR 1952 UL http://adc.bmj.com/content/27/132/128.abstract AB