abstract:Michael Clark (born: 12 May 1861 Belford, Northumberland, England – died: July 29, 1926 Olds, Alberta) was a Canadian physician and politician from Alberta, Canada.
"In classrooms, a typical exposure is at 20 millionths of the guideline levels, whereas a mobile phone is 50% of guidelines, " says Dr MichaelClark, science spokesman for the Health Protection Agency.