"The American Cancer Society and three federal agencies named 19 chemicals and shift work on Thursday as potential causes of cancer that deserve more investigation.

The group published a report with the backing of international experts who said the 20 potential causes they identified had fairly good evidence that they may be a danger and deserved more follow-up.

Most are familiar names, such as chloroform, formaldehyde and polychlorinated biphenyls or PCBs, but the list includes indium phosphide, a relatively new compound used in making flat-screen televisions."

Maggie Fox reports for Reuters July 15, 2010. [2]