"Something like 2% of cancers down the road will come from CT scans now, " says Columbia University radiation biologist EricHall, who was not involved in the current study.
Eric Garcetti, 42, and Wendy Greuel, 51 - both veterans of city hall - have been cited as mayoral candidates who might face each other in a run-off vote in May if no candidate wins a majority of the vote in Tuesday's election.