RT Journal Article SR Electronic T1 Vitamins and Minerals in Pregnancy and Lactation JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 436 OP 436 DO 10.1136/adc.64.3.436 VO 64 IS 3 A1 P J Aggett YR 1989 UL http://adc.bmj.com/content/64/3/436.1.abstract AB