PT - JOURNAL ARTICLE ED - , TI - International Journal of Epidemiology AID - 10.1136/jmg.10.1.100-a DP - 1973 Mar 01 TA - Journal of Medical Genetics PG - 100--100 VI - 10 IP - 1 4099 - http://jmg.bmj.com/content/10/1/100.2.short 4100 - http://jmg.bmj.com/content/10/1/100.2.full SO - J Med Genet1973 Mar 01; 10