Statement: dosages are specified in the intervention section of the secondary trial and the primary trial
Primary_evidence: INTERVENTION 1:    Lidocaine Patch   Lidocaine patch 5% (Lidoderm®, Endo Pharmaceuticals Inc.): 1 patch was applied topically to the affected site(s) for 12 hours each day. INTERVENTION 2:    Placebo Patch   Placebo patch: 1 patch was applied topically to the affected site(s) for 12 hours each day.
Secondary_evidence: INTERVENTION 1:    Letrozole, Breast Enhancement, Safety   Single arm of healthy postmenopausal women to have two breast MRI (baseline and post-treatment). Letrozole of 12.5 mg/day is given for three successive days just prior to the second MRI.