If the title to an article reads, “Can Your Cell Phone Cause Cancer? The Answer Just Changed from “Possibly” to “Probably”, do you really need to read the article?
I don’t, but BottomLine Personal has a nice review of evidence based on 90 studies showing the connection between cell phones and DNA damage.
One reason I didn’t need to read the article is that I remember went cell phones first came out, their size back then, and why they made them smaller: it was clear and undeniable that the cell phone caused cancer; so they made them smaller (less clear, more deniable). So it was a matter of sooner or later: personally I prefer neither and don’t use them, but if you do… you might want to read the article. It is in Volume 37, Number 15, August 1, 2016.