Statement: the secondary trial and the primary trial do not use topical medications in their studies.
Primary_evidence: INTERVENTION 1:    4D Conformal Image-Guided Partial Breast RT   This is a single arm trial designed to look at the results in women treated with partial breast irradiation twice daily for 5 days.   4D Conformal Image-Guided Partial Breast RT: External beam partial breast radiation to target a portion of the breast twice a day for 5 days.
Secondary_evidence: INTERVENTION 1:    Multicomponent Intervention   1.) A one-page paper-pencil agenda setting checklist completed immediately before a regularly scheduled medical oncology visit to elicit and align patient and companion perspectives regarding issues to discuss with the provider, and to stimulate discussion about the role of the companion in the visit, 2.) facilitated registration for the patient portal (for patient and family member, as desired by the patient), and 3.) education (as relevant) on access to doctor's electronic visit notes. INTERVENTION 2:    Usual Care   Care as usual with the medical oncologist.