Drug Regulation
Drug Control Governance: Regulatory Bodies and Their Impact
Therapeutic Drug Monitoring: Drug Analysis Methods
Therapeutic Drug Monitoring: Affecting Factors
Drug Concentrations: Measurements
Drug Dosing: Geriatric Patients
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Updated: Jul 5, 2026

Colorimetric Assessment of Deiodinase 1 Activity in Human Liver Microsomes Using the Sandell-Kolthoff Reaction
Published on: April 10, 2026
Mario Thevis1, Hans Geyer, Wilhelm Schänzer
1Zentrum für Präventive Dopingforschung--Institut für Biochemie, Deutsche Sporthochschule Köln, Carl-Diem-Weg 6, 50933 Köln. thevis@dshs-koeln.de
German doping controls increased significantly from 1989-2006, especially out-of-competition testing. However, per-capita analyses revealed disparities between federations, necessitating a review of national anti-doping efforts.
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