Details |
|
Cell phone users (n=407 with 352 controls) in the Ukraine exposed to 450 MHz NMT (operating since 1993) or 900 MHz GSM (operating since 1995), measured at 316-1000 uW/cm2 or 20-159 uW/cm2, respectively. Younger users in their 20s and 30s complained of headaches from NMT use more than either controls, users of GSM phones, or older users of NMT phones. |