MOBILE phone users should take precautions to protect themselves from cancer risks and should not wait for a definitive study to be published, the head of a US cancer research institute said yesterday.

Mobile phone users should take precautions to protect themselves from cancer risks and should not wait for a definitive study to be published, the head of a US cancer research institute said today.

MOBILE phones do not cause health problems if used for up to 10 years but a long-term cancer risk cannot be ruled out, experts have said.