Image from Here Dr. Chang was quoted in a NextAvenue (PBS) article discussing vocal cords and their treatment when they are over-used (i.e. nodules ) as in the case with Joan Rivers or under-used (i.e. bowing ). You can read the full article here . This article was written by journalist Michelle Rafter in the wake of Joan Rivers' death from some type of endoscopic "throat" procedure, a not uncommon experience for any patient including the elderly complaining of throat sy…