จำนำโน๊ตบุ๊คStudy the effects of mobile phone and the longest I’ve ever done that. The use of mobile phones for a long time does not increase the risk of brain cancer, Danish researchers found no evidence that using mobile phones for a long period increases the risk of brain cancer. After doing research about 350,000 mobile phone users for a period of 18 years earlier studies could not confirm the link between the consumption rate. Mobile phone with the risk of brain tumors. Due to the long-term research in the past month. International Agency for Research on Cancer (I ARC), the World Health Organization. Assigned to the electromagnetic wave signal transmitted from a mobile phone. “It is possible to cause cancer,” Sierra Club Patrick Frey, the researcher from the Danish Cancer Society and the Board. Study, the risk of cancer by comparing the results of the examination. The 358,403 Danish cell phone users, people with a Danish adult population since the year 2533 to year 2550, the researcher argues that require large amounts of sample and data collection for many years. Is to reduce errors in the timing of the use of samples and reduce errors in the selection of the sample to a minimum.