In 2004, a rash of early scientific reports suggested that cell-phones, which produce radio frequency energy, might cause a fatal form of brain cancer called ‘glioma,' reminisces Siddhartha Mukherjee in The Emperor of all Maladies: A biography of cancer (www.harpercollins.co.in). “Gliomas appeared on the same side of the brain that the phone was predominantly held, further tightening the link. An avalanche of panic ensued in the media…”
Recall bias
The Pulitzer-winning book goes on to inform that an enormous British study was launched in 2004 to confirm these ominous early reports; and ‘cases' (patients with gliomas) were compared to ‘controls'...