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 cancer. - Masujiro Makita; Eriko Manabe; Tomoko Kurita; Hiroyuki Takei; Seigo Nakamura; Akihiro Kuwahata; Masaki Sekino; Moriaki Kusakabe; Yasuo Ohashi (BMC Medical Imaging, 2020)