1. Cocaine pharmacokinetics in humans;Barnett;J. Ethnopharmac.,1981
2. Plasma level and renal extraction of (3H) codeine phosphate in man and in the dog;Bechtel;Arzneimittel-Forsch./Drug Res.,1978
3. Gas-chromatographic measurement of codeine and norcodeine in human plasma;Brunson;Clin. Chem.,1975