PT - JOURNAL ARTICLE AU - CARLOS ALVAREZ-DARDET TI - The fall of the wall and gender as “natural” experiments AID - 10.1136/jech.54.2.81 DP - 2000 Feb 01 TA - Journal of Epidemiology and Community Health PG - 81--81 VI - 54 IP - 2 4099 - http://jech.bmj.com/content/54/2/81.short 4100 - http://jech.bmj.com/content/54/2/81.full SO - J Epidemiol Community Health2000 Feb 01; 54