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Piper, Thomas; Geyer, Hans; Nieschlag, Eberhard; Bally, Lia; Thevis, Mario (2021). Carbon isotope ratios of endogenous steroids found in human serum-method development, validation, and reference population-derived thresholds. Analytical and bioanalytical chemistry, 413(22), pp. 5655-5667. Springer 10.1007/s00216-021-03439-9
Bischofberger, Andrea S; Ringer, Simone K; Geyer, Hans; Imboden, Isabel; Ueltschi, Gottlieb; Lischer, Christoph J (2006). Histomorphologic evaluation of extracorporeal shock wave therapy of the fourth metatarsal bone and the origin of the suspensory ligament in horses without lameness. American journal of veterinary research, 67(4), pp. 577-582. Chicago, Ill.: American Veterinary Medical Association 10.2460/ajvr.67.4.577
mareck, u; fusshöller, g; geyer, h; haenelt, n; thevis, n; kamber, m; Brenneisen, Rudolf Max; schänzer, w (2006). Temporal indication of marijuana use. Recent Advances in Doping Analysis (14), pp. 101-109. Sportverlag Strauss
