PT - JOURNAL ARTICLE ED - , TI - Dr Melia and coauthors reply AID - 10.1136/jech.37.2.166 DP - 1983 Jun 01 TA - Journal of Epidemiology and Community Health PG - 166--167 VI - 37 IP - 2 4099 - http://jech.bmj.com/content/37/2/166.short 4100 - http://jech.bmj.com/content/37/2/166.full SO - J Epidemiol Community Health1983 Jun 01; 37