SAN ANTONIO (EGMN) - Survival outcomes in women with pregnancy-associated breast cancer were significantly worse than in nonpregnant controls matched for age and tumor stage in a relatively large single-center study.This finding is at odds with most prior series, which have found no difference in 5-year survival depending upon whether a breast cancer patient was pregnant, study investigator Dr. Rajesh Sehgal said at the San Antonio Breast Cancer Symposium."We don't know why our results were different....