RT Journal Article SR Electronic T1 The Abnormality of Tryptophane Metabolism in Children with Mongolism JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 17 OP 20 DO 10.1136/adc.37.191.17 VO 37 IS 191 A1 O'Brien, Donough A1 Groshek, Ann YR 1962 UL http://adc.bmj.com/content/37/191/17.abstract AB