TY - JOUR T1 - Numbers of relatives of severely subnormal children. JF - British Journal of Preventive & Social Medicine JO - Br J Prev Soc Med SP - 162 LP - 164 DO - 10.1136/jech.20.4.162 VL - 20 IS - 4 AU - D J Barker Y1 - 1966/10/01 UR - http://jech.bmj.com/content/20/4/162.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -