Fig. 1From: Moving a neodymium magnet promotes the migration of a magnetic tracer and increases the monitoring counts on the skin surface of sentinel lymph nodes in breast cancerMagnet movement by a neodymium magnet. a A neodymium magnet was moved over the skin from the injection site to the axilla repeatedly to promote migration of the magnetic tracer without massage after the magnet tracer is injected. b A neodymium magnet (Neomag, KOKUYO Co., Ltd.). c The handheld magnetometer developed by Tokyo University. It contains a small neodymium magnet in its tip. d The monitoring count on the skin surface was measured by a handheld magnetometerBack to article page