The review singled out research by Swedish oncologist Lennart Hardell, which said that long-term users of old-fashioned analog cell phones were at least 30% more likely than nonusers to develop brain tumors.

• 这份报告中还专门以瑞典肿瘤科医生伦纳特·哈德尔的调查为例进行了分析。 哈德尔的调查认为长期使用老式模拟手机的人患脑癌的可能性要比不用手机的人高至少30%25。