PT - JOURNAL ARTICLE AU - M Blettner AU - J Chang-Claude AU - T Scheuchenpflug TI - Induced abortion as an independent risk factor for breast cancer. AID - 10.1136/jech.51.4.465 DP - 1997 Aug 01 TA - Journal of Epidemiology and Community Health PG - 465--467 VI - 51 IP - 4 4099 - http://jech.bmj.com/content/51/4/465.short 4100 - http://jech.bmj.com/content/51/4/465.full SO - J Epidemiol Community Health1997 Aug 01; 51