NavGeneral InfoEmail Print Geography United Kingdom (GBR) Time period covered 01/1997 - 12/1997 Data type Scientific literature Keywords Idiopathic intellectual disability Citation Authors Whalley LJ, Deary IJ Journal BMJ Volume 322 Issue 7290 Pages 819 Publication year 2001 Suggested citation Whalley LJ, Deary IJ. Longitudinal cohort study of childhood IQ and survival up to age 76. BMJ. 2001; 322(7290): 819. GHDx Entry last modified on: Mar 3, 2019