PT - JOURNAL ARTICLE AU - Fran Elaine Baum TI - More than the tip of the iceberg: health policies and research that go below the surface AID - 10.1136/jech.2009.091595 DP - 2009 Dec 01 TA - Journal of Epidemiology and Community Health PG - 957--957 VI - 63 IP - 12 4099 - http://jech.bmj.com/content/63/12/957.short 4100 - http://jech.bmj.com/content/63/12/957.full SO - J Epidemiol Community Health2009 Dec 01; 63