RT Journal Article SR Electronic T1 Plasma zinc concentrations in iron supplemented low birthweight infants JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 1144 OP 1144 DO 10.1136/adc.61.11.1144-a VO 61 IS 11 A1 Karen Simmer A1 R P H Thompson YR 1986 UL http://adc.bmj.com/content/61/11/1144.2.abstract AB