No abstract available
Publication types
-
Clinical Trial
-
Controlled Clinical Trial
MeSH terms
-
Aniline Compounds / pharmacology*
-
Bronchitis / drug therapy
-
Clinical Trials as Topic
-
Expectorants / pharmacology*
-
Humans
-
Placebos
-
Sputum
-
Toluene / pharmacology*
-
Viscosity
Substances
-
Aniline Compounds
-
Expectorants
-
Placebos
-
Toluene