 The BMI system used in the study operates in the frequency range of 20 megahertz MHz to 9 gigahertz GHz. Canadian safety limits for the interaction of these non-ionizing electromagnetic waves with humans are outlined in the Health Canada publication Safety Code 6: Limits of Human Exposure to Radiofrequency Electromagnetic Energy in the Frequency Range from 3 kilohertz kHz to 300 GHz 1. For unregulated environments, the Specific Absorption Rate SAR limit set by Health Canada is 1.6 WKg. In the system used in this study, radio-frequency energy is generated via the Vector Network Analyzer VNA. If the VNA is set at its maximum output power, which is 3.2 milliwatt mW, the power received at 5 cm from the antenna which is the distance where the breast will be was measured to be 890 microwatt, which would yield a SAR value of 0.0196 Wkg. 