Healthcare: BST radiation at no risk ?

According to the Australian Mobile Telecommunications Association (AMTA), “there is no adverse health risks linked to using mobile phones or living or working near mobile phone base stations, on the basis of the most recent proven scientific evidence sourced from internationally renowned bodies such as the World Health Organization (WHO), or from the Australian Radiation Protection and Nuclear Safety Agency (ARPANSA)”. On such a subject, people feel ill at ease. Are the occurrence of brain tumors just strange coincidence or disinformation? What we can highlight, without taking an option, is the caution of scientific people and universities on the subject.