PT - JOURNAL ARTICLE ED - , TI - Extending screening mammography to include younger women minimally increased life expectancy with large increases in cost AID - 10.1136/ebm.1998.3.95 DP - 1998 Jun 01 TA - Evidence Based Medicine PG - 95--95 VI - 3 IP - 3 4099 - http://ebm.bmj.com/content/3/3/95.short 4100 - http://ebm.bmj.com/content/3/3/95.full SO - Evid Based Med1998 Jun 01; 3