The University of Pittsburgh Cancer Institute's alert continues to attract media interest. CNN's Larry King Live has scheduled a new show on "Cell Phone Dangers" for tomorrow (Tuesday) night. (The last one was on May 27.) Sources at CNN told us that the guest list now includes: Keith Black, a neurosurgeon at the Cedars-Sinai Medical Center in Los Angeles, Otis Brawley, the chief medical officer of the American Cancer Society, Devra Davis of the University of Pittsburgh Cancer Institute, Sanjay Gupta, CNN's chief medical correspondent, Paul Song, a radiation oncologist in Los Angeles and Ted Schwartz, a brain surgeon at the Columbia-Presbyterian Medical Center in New York City. The line-up may change before air time. Black, Gupta and Schwartz were also on the May 27 show.