Statement: Unlike the secondary trial, the primary trial does not administer any medication orally or intravenously.
Primary_evidence: INTERVENTION 1:    Samarium 153-EDTMP + Stem Cell Transplant   Samarium 153-EDTMP tracer dose = 30 millicurie (mCi) intravenous Day 1; or with study drug to bones, receive higher therapy dose of 153 Sm-EDTMP 7-14 days after tracer dose. Stem Cell Transplant Day 0, about 14-21 days after Samarium 153-EDTMP.
Secondary_evidence: INTERVENTION 1:    Exemestane   Participants diagnosed with breast cancer who remained disease-free after previously receiving 2 to 3 years of tamoxifen 20 milligram (mg) or 30 mg tablet-in-capsule orally once daily as per standard medical practice, received exemestane (Aromasin) 25 mg tablet-in-capsule orally once daily for the remainder of 5-year period. INTERVENTION 2:    Tamoxifen   Participants diagnosed with breast cancer who remained disease-free after previously receiving 2 to 3 years of tamoxifen 20 mg or 30 mg tablet-in-capsule orally once daily as per standard medical practice, received the same dose of tamoxifen tablet-in-capsule orally once daily for the remainder of 5-year period.