It's amazing what one comma does.  The sentence in my post on ciprofloxacin
which read "The author followed children with cystic fibrosis treated for
years, some of
them with ciprofloxacin, and found no evidence of arthropathy", should have
read "The author followed children with cystic fibrosis treated for years,
some of
them, with ciprofloxacin, and found no evidence of arthropathy".

Don't forget to dot your eyes and cross your teas.  Whatever our teachers
meant by that.

Jack Newman, MD, FRCPC