The development of an in vivo model for the evaluation of drugs affecting tracheal mucus.
D000818:Animals; D005100:Expectorants / Q000494:pharmacology*; D008954:Models, Biological; D009093:Mucus / Q000187:drug effects*; D010118:Oxytetracycline / Q000494:pharmacology; D013552:Swine; D013997:Time Factors; D014132:Trachea / Q000502:physiology*
D005100:Expectorants; D010118:Oxytetracycline