Localizing Positive Axillary Lymph Nodes in Breast Cancer Patients Post Neoadjuvant Therapy.

Introduction: Multiple trials demonstrated the feasibility of sentinel lymph node biopsy (SLNB) after neoadjuvant chemotherapy. Those trials reported > 10% false-negative rate; however, a subset analysis of the Z1071 trial demonstrated that removing the clipped positive lymph node (LN) during SLNB reduces the false-negative rate to 6.8% post neoadjuvant chemotherapy.

Seebeck and Figure of Merit Enhancement by Rare Earth Doping in YbREZnSb (x = 0.5).

YbZnSb has been of interest for its intermediate valency and possible Kondo designation. It is one of the few transition metal compounds of the CaAlSb structure type that show metallic behavior. While the solid solution of YbMnZnSb shows an improvement in the high temperature figure of merit of about 10% over YbMnSb, there has been no investigation of optimization of the Zn containing phase.