title: N-Acetyltryptophan ethyl ester: a new internal standard for the gas chromatographic determination of plasma anticonvulsant levels.
mesh_terms: D000927:Anticonvulsants / Q000097:blood*; D002849:Chromatography, Gas; D006801:Humans; D010634:Phenobarbital / Q000097:blood; D010672:Phenytoin / Q000097:blood; D011324:Primidone / Q000097:blood; D014364:Tryptophan / Q000031:analogs & derivatives*
chemical_list: D000927:Anticonvulsants; D011324:Primidone; D010672:Phenytoin; D014364:Tryptophan; D010634:Phenobarbital