    nténce 1: Thirty-eight percent of patients  urveyed’ in five urban clinics believed the  Imyth'that cancer spreads when exposed to air  luring surgery , according-to'a,poll to be  published Tuesday    ntence 2: Thirty-eight. percent of cancer   patients in five’ urban clinics believed the myth  hat the disease spreads when exposed to air  luring surgery , according to a survey...