RT Journal Article SR Electronic T1 Health of the Schoolchild JF British Journal of Social Medicine JO Br J Soc Med FD BMJ Publishing Group Ltd SP 145 OP 161 DO 10.1136/jech.5.3.145 VO 5 IS 3 A1 Norris, Vera YR 1951 UL http://jech.bmj.com/content/5/3/145.abstract AB