Mobile phone is now a multi-billion dollar industry.
By the year 2000, there will be over 100 millions users world wide. The public are often confronted with news reporting links with cancer, increased blood pressure, memory changes and other health related issues. The BBC, Daily Telegraph, CNN, ABC News, plus local papers do regular featured articles on the health hazards of mobile phone. The medical profession are often asked to comment and give advice. Ironically, not many of us possess evidence based knowledge on such issue.