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This paper discusses dosimetry of electromagnetic fields designed for future Body Area Networks (BAN). Electromagnetic dosimetry, which quantifies the interaction of electromagnetic fields with biological material, is primarily used for evaluation of human exposures due to wireless devices generating electromagnetic fields. The calculation of total external electromagnetic fields enables determination of the deposited electromagnetic energy in a human being via Specific Absorption Rate (SAR) using known approximation formulas. This paper presents an application of the analytical solution of SAR to calculations of human exposure from proposed BAN systems.