Zeranol - doping offence or mycotoxin? : a case-related study

von Thevis, Mario (Autor), ... Fußhöller, Gregor (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Drug testing and analysis, 3 (2011), 11/12 (29th Cologne Workshop: Advances in Sports Drug Testing), S. 777-783, Lit.

Simplified confirmation analysis for Carboxy-THC

von Mareck, Ute (Autor), ... Fußhöller, Gregor (Autor), Geyer, Hans (Autor), Thevis, Mario (Autor)
Erschienen in Recent advances in doping analysis (29) : Proceedings of the Manfred Donike Workshop ; 39th Cologne Workshop on Dope Analysis 22nd to 26th March 2021, Hellenthal: Sportverl. Strauß (Verlag), 2021, S. 163-166, Lit.

Risk of unintentional antidoping rule violations by consumption of hemp products

von Mareck, Ute (Autor), ... Fußhöller, Gregor (Autor), Haenelt, Nadine (Autor), Thevis, Mario (Autor)
Erschienen in Recent advances in doping analysis (29) : Proceedings of the Manfred Donike Workshop ; 39th Cologne Workshop on Dope Analysis 22nd to 26th March 2021, Hellenthal: Sportverl. Strauß (Verlag), 2021, S. 128-132, Lit.

Investigations on the in vivo metabolism of 5α-androst-2-en-17-one

von Piper, Thomas (Autor), ... Fußhöller, Gregor (Autor), Schänzer, Wilhelm (Autor), Thevis, Mario (Autor)
Erschienen in Rapid communications in mass spectrometry, 36 (2022), 17, Art.-ID e9343, [14 S.], Lit.

Excretion of 19-norandrosterone after consumption of boar meat

von Hülsemann, Frank (Autor), ... Fußhöller, Gregor (Autor), Lehn, Christine (Autor), Thevis, Mario (Autor)
Erschienen in Drug testing and analysis, 12 (2020), 11/12 (The 38th Manfred Donike workshop on doping analysis), S. 1581-1586, Lit.

Sensitive detection of testosterone and testosterone prohormone administrations based on urinary concentrations and carbon isotope ratios of androsterone and etiocholanolone

von Piper, Thomas (Autor), ... Haenelt, Nadine (Autor), Fußhöller, Gregor (Autor), Geyer, Hans (Autor), Thevis, Mario (Autor)
Erschienen in Recent advances in doping analysis (29) : Proceedings of the Manfred Donike Workshop ; 39th Cologne Workshop on Dope Analysis 22nd to 26th March 2021, Hellenthal: Sportverl. Strauß (Verlag), 2021, S. 187-188, Lit.

Results of confirmation procedures in the scope of the steroidal athlete biological passport in the Cologne laboratory from 2017-2019

von Mareck, Ute (Autor), ... Geyer, Hans (Autor), Fußhöller, Gregor (Autor), Haenelt, Nadine (Autor), Thevis, Mario (Autor)
Erschienen in Recent advances in doping analysis (29) : Proceedings of the Manfred Donike Workshop ; 39th Cologne Workshop on Dope Analysis 22nd to 26th March 2021, Hellenthal: Sportverl. Strauß (Verlag), 2021, S. 41-44, Lit.

Sensitive detection of testosterone and testosterone prohormone administrations based on urinary concentrations and carbon isotope ratios of androsterone and etiocholanolone

von Piper, Thomas (Autor), ... Haenelt, Nadine (Autor), Fußhöller, Gregor (Autor), Geyer, Hans (Autor), Thevis, Mario (Autor)
Erschienen in Drug testing and analysis, 13 (2021), 11/12 (The 39th Manfred Donike workshop on doping analysis), S. 1835-1851, Lit.

Screening for two selective androgen receptor modulators using gas chromatography-mass spectrometry in doping control analysis

von Thevis, Mario (Autor), ... Kohler, Maxie (Autor), Schlörer, Nils (Autor), Fußhöller, Gregor (Autor), Schänzer, Wilhelm (Autor)
Erschienen in European journal of mass spectrometry, 14 (2008), 3, S. 153–161, Lit.

GC -single and -triple quadrupole mass spectrometry in steroid profiling

von Mareck, Ute (Autor), ... Fußhöller, Gregor (Autor), Geyer, Hans (Autor), Opfermann, Georg (Autor), Thevis, Mario (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Recent advances in doping analysis (20) : Proceedings of the Manfred-Donike-Workshop ; 30th Cologne Workshop on Dope Analysis ; 26th February to 2nd March 2012 2. Variante, Köln: Sportverl. Strauß (Verlag), 2012, S. 189-192, Lit.

Studies on the in vivo metabolism of methylstenbolone and detection of novel long term metabolites for doping control analysis

von Piper, Thomas (Autor), ... Fußhöller, Gregor (Autor), Schänzer, Wilhelm (Autor), Lagojda, Andreas (Autor), Kuehne, Dirk (Autor), Thevis, Mario (Autor)
Erschienen in Drug testing and analysis, 11 (2019), 11/12 (37th Cologne workshop: Advances in sports drug testing), S. 1644-1655, Lit.

Mass spectrometric characterization of urinary metabolites of the selective androgen receptor modulator andarine (S-4) for routine doping control purposes

von Thevis, Mario (Autor), ... Thomas, A. (Autor), Fußhöller, Gregor (Autor), Beuck, Simon (Autor), Geyer, Hans (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Rapid communications in mass spectrometry, 24 (2010), 15, S. 2245-2254, Lit.

Detecting the misuse of 7-oxo-DHEA by means of carbon isotope ratio mass spectrometry in doping control analysis

von Piper, Thomas (Autor), ... Fußhöller, Gregor (Autor), Geyer, Hans (Autor), Toboc, Ani (Autor), Mădălin-George, Dănilă (Autor), Thevis, Mario (Autor)
Erschienen in Rapid communications in mass spectrometry, 34 (2020), 12, Art.-ID e8776, [14 S.], Lit.

Risk of unintentional antidoping rule violations by consumption of hemp products

von Mareck, Ute (Autor), ... Fußhöller, Gregor (Autor), Schertel, Thomas (Autor), Petring, Simon (Autor), Huestis, Marilyn A. (Autor), Thevis, Mario (Autor)
Erschienen in Drug testing and analysis, 15 (2023), 1 (The 40th Manfred Donike workshop on doping analysis), S. 27-41, Lit.

Additional investigations in connection with atypical findings for 19-norandrosterone : a case study

von Fußhöller, Gregor (Autor), ... Geyer, Hans (Autor), Haenelt, Nadine (Autor), Hülsemann, Frank (Autor), Gougoulidis, Vassilios (Autor), Blatt, Christina (Autor), Thevis, Mario (Autor)
Erschienen in Recent advances in doping analysis (29) : Proceedings of the Manfred Donike Workshop ; 39th Cologne Workshop on Dope Analysis 22nd to 26th March 2021, Hellenthal: Sportverl. Strauß (Verlag), 2021, S. 38-40, Lit.

Case Study : atypical δ13C values of urinary norandrosterone

von Hülsemann, Frank (Autor), ... Gougoulidis, Vassilios (Autor), Schertel, Thomas (Autor), Fußhöller, Gregor (Autor), Flenker, Ulrich (Autor), Piper, Thomas (Autor), Thevis, Mario (Autor)
Erschienen in Drug testing and analysis, 10 (2018), 11/12 (36th Cologne workshop: Advances in sports drug testing), S. 1728-1733, Lit.

Preliminary data on the potential for unintentional antidoping rule violations by permitted cannabidiol (CBD) use

von Mareck, Ute (Autor), ... Fußhöller, Gregor (Autor), Geyer, Hans (Autor), Huestis, Marilyn A. (Autor), Scheiff, Anja Brigitta (Autor), Thevis, Mario (Autor)
Erschienen in Drug testing and analysis, 13 (2021), 3, S. 539-549, Lit.

Mass spectrometric characterization of urinary hydrafinil metabolites for routine doping control purposes

von Knoop, André-Janic (Autor), ... Fußhöller, Gregor (Autor), Haenelt, Nadine (Autor), Görgens, Christian (Autor), Guddat, Sven (Autor), Geyer, Hans (Autor), Thevis, Mario (Autor)
Erschienen in Drug testing and analysis, 13 (2021), 11/12 (The 39th Manfred Donike workshop on doping analysis), S. 1915-1920, Lit.

Reporting and managing elevated testosterone/epitestosterone ratios : novel aspects after five years' experience

von Mareck, Ute (Autor), ... Geyer, Hans (Autor), Fußhöller, Gregor (Autor), Schwenke, Anne (Autor), Haenelt, Nadine (Autor), Piper, Thomas (Autor), Thevis, Mario (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Drug testing and analysis, 2 (2010), 11/12, S. 637-642, Lit.

Detection of stanozolol and its major metabolites in human urine by liquid chromatography-tandem mass spectrometry

von Thevis, Mario (Autor), ... Fußhöller, Gregor (Autor), Geyer, Hans (Autor), Rodchenkov, Grigory (Autor), Sigmund, Gerd (Autor), Koch, A. (Autor), Thomas, Andreas (Autor), Schänzer, Wilhelm (Autor)
Erschienen in Chromatographia, 64 (2006), 7/8, S. 441-446, Lit.