L. Larson

A clinically applicable high-pressure liquid chromatographic method for measurement of serum theophylline, with detailed evaluation of interferences.

J. McDonald, J. Ladenson, C. Smith, 1980, American journal of clinical pathology.

A high-pressure liquid chromatography method for serum quinidine and (3S)-3-hydroxyquinidine.

J. McDonald, J. Ladenson, G. Kessler, 1979, Clinica chimica acta; international journal of clinical chemistry.