But do you suspect this guest has no children?

Look, I ain't no scientist but I and my cousin have had tumours and the head neuro doc at the NYU school of medicine, a relative, said cell phones suck years ago... no need to show him any studies. Now, the WHO and Health Canada... oh, nevermind. Build yerself an aerie on a pylon and fry yer ass. Me? Nope.

As far as the studies go, big brother ain't gonna tell ya shit. So, fer me, why bother getting in bother? Fer me, it's a no brainer.... why take the chance when you don't have to do so? YMMV.