Interpersonal influences and attitudes about adjuvant therapy treatment decisions among non-metastatic breast cancer patients: an examination of differences by age and race/ethnicity in the BQUAL study Rachel C. SheltonGrace Clarke HillyerDawn L. HershmanNicole Leoce • Dana H. BovbjergJeanne S. MandelblattLawrence H. Kushi • Lois LameratoS. David NathansonChristine B. AmbrosoneAlfred I. Neugut