Παραδείγματα από το σώμα κειμένου για Extremely low frequency
1. Conflicting studies × Swedish study finds threefold increased risk of childhood leukaemia in families living within 50 metres of power lines. × Canadian study finds 80 per cent increased risk for children within 100 metres of lines. × Analysis of nine studies finds doubling of childhood leukaemia in families exposed to magnetic fields of 0.4 microteslas (within 60 metres). × International Agency for Cancer Research classifies extremely low frequency magnetic fields as "possibly carcinogenic". × UK Childhood Cancer Study concludes electromagnetic fields "are not principal causes, if at all, of leukaemia in children." × Oxford Children‘s cancer group concludes living within 600 metres of lines could account for five cases of leukaemia a year.