Phenolsulfonphthalein as an index of drug ingestion.
D001826:Body Fluids; D004358:Drug Therapy; D006801:Humans; D010635:Phenolphthaleins / Q000652:urine*; D010637:Phenolsulfonphthalein
D010635:Phenolphthaleins; D010637:Phenolsulfonphthalein
DRUG THERAPY; PHENOLPHTHALEINS/urine