Sagot :
Electromagnetic fields (EMF) of lower frequencies up to 200 MHz are commonly used in medicine for diagnosis and therapy; included are exposures to radiofrequency (RF) fields above 100 kHz (0.1 MHz).
Electromagnetic fields (EMF) of lower frequencies up to 200 MHz are commonly used in medicine for diagnosis and therapy; included are exposures to radiofrequency (RF) fields above 100 kHz (0.1 MHz).