[The action of a proteolytic enzyme on the serum concentrations of demethylchlortetracycline].
D002751:Chlortetracycline / Q000097:blood*; D002918:Chymotrypsin / Q000494:pharmacology*; D004357:Drug Synergism; D006801:Humans; D066298:In Vitro Techniques
D002918:Chymotrypsin; D002751:Chlortetracycline