Biologic Activity of Static and Low-frequency Fields
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Researchers have long been performing experiments, studies and calculations in an effort to learn more about the biologic activity of electromagnetic fields. If we consider the entire frequency spectrum from static fields to fields of extremely high frequencies, we begin to appreciate the technical difficulties involved in the treatment of such questions. Moreover, biologic systems are highly complex and, in many respects, difficult to analyze, for the researcher must deal not with processes which can be reproducibly measured and observed, but with variable modes of behavior and relatively slight alterations in the processes of interest. This necessitates a statistical treatment of the subject.