Clinical trial of methyl cysteine hydrochloride in chronic bronchitis.
D001991:Bronchitis / Q000628:therapy*; D029481:Bronchitis, Chronic; D003545:Cysteine / Q000031:analogs & derivatives; D006801:Humans
D003545:Cysteine; C017507:mecysteine
BRONCHITIS/therapy; CYSTEINE/related compounds