the hip study had 25 per cent fewer breast cancer deaths at 18 years in women under age 50 at the start of the trial , but because only 12 patients under age 50 had mammographically detectable tumors ( out of 89 cancers diagnosed in the screened group ) , most of the benefit must be due to physical examinations or increased awareness of breast cancer symptoms .
C0027651
tumors
C0006826
cancers