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Detection of Stimulants and Narcotics by Liquid Chromatography-Tandem Mass Spectrometry and Gas Chromatography-Mass Spectrometry for Sports Doping Control.

Ahrens BD, Kucherova Y, Butch AW.

Methods Mol Biol. 2016;1383:247-63. doi: 10.1007/978-1-4939-3252-8_26.


Estimating the hCGβcf in urine during pregnancy.

Nerenz RD, Butch AW, Woldemariam GA, Yarbrough ML, Grenache DG, Gronowski AM.

Clin Biochem. 2016 Feb;49(3):282-6. doi: 10.1016/j.clinbiochem.2015.10.020. Epub 2015 Nov 2.


The Urine Marker Test: An Alternative Approach to Supervised Urine Collection for Doping Control.

Elbe AM, Jensen SN, Elsborg P, Wetzke M, Woldemariam GA, Huppertz B, Keller R, Butch AW.

Sports Med. 2016 Jan;46(1):15-22. doi: 10.1007/s40279-015-0388-6.


Evaluation of a semi-quantitative pregnancy device for susceptibility to interference caused by hCGβcf.

Nerenz RD, Butch AW, Ashby L, Woldemariam GA, Gronowski AM.

Clin Biochem. 2015 Aug;48(12):815-7. doi: 10.1016/j.clinbiochem.2015.04.015. Epub 2015 Apr 25.


Physical Activity, Physical Performance, and Biological Markers of Health among Sedentary Older Latinos.

Moreno G, Mangione CM, Wang PC, Trejo L, Butch A, Tseng CH, Sarkisian CA.

Curr Gerontol Geriatr Res. 2014;2014:535071. doi: 10.1155/2014/535071. Epub 2014 Jun 12.


Serum albumin and kidney function decline in HIV-infected women.

Lang J, Scherzer R, Tien PC, Parikh CR, Anastos K, Estrella MM, Abraham AG, Sharma A, Cohen MH, Butch AW, Nowicki M, Grunfeld C, Shlipak MG.

Am J Kidney Dis. 2014 Oct;64(4):584-91. doi: 10.1053/j.ajkd.2014.05.015. Epub 2014 Jul 22.


Monoclonal and polyclonal immunoglobulin interference in a conjugated bilirubin assay.

Song L, Kelly KA, Butch AW.

Arch Pathol Lab Med. 2014 Jul;138(7):950-4. doi: 10.5858/arpa.2013-0042-OA.


Immunoextraction-tandem mass spectrometry method for measuring intact human chorionic gonadotropin, free β-subunit, and β-subunit core fragment in urine.

Woldemariam GA, Butch AW.

Clin Chem. 2014 Aug;60(8):1089-97. doi: 10.1373/clinchem.2014.222703. Epub 2014 Jun 4.


Defining the role of albumin infusion in cirrhosis-associated hyponatremia.

Nguyen MK, Ornekian V, Kao L, Butch AW, Kurtz I.

Am J Physiol Gastrointest Liver Physiol. 2014 Jul 15;307(2):G229-32. doi: 10.1152/ajpgi.00424.2013. Epub 2014 May 15.


Increases in duration of first highly active antiretroviral therapy over time (1996-2009) and associated factors in the Multicenter AIDS Cohort Study.

Slama L, Li X, Brown T, Jacobson LP, Pialoux G, Macatangay B, Bolan RK, Phair J, Palella FJ Jr; Multicenter AIDS cohort Study.

J Acquir Immune Defic Syndr. 2014 Jan 1;65(1):57-64. doi: 10.1097/QAI.0b013e3182a99a0d.


Interlaboratory agreement of insulin-like growth factor 1 concentrations measured by mass spectrometry.

Cox HD, Lopes F, Woldemariam GA, Becker JO, Parkin MC, Thomas A, Butch AW, Cowan DA, Thevis M, Bowers LD, Hoofnagle AN.

Clin Chem. 2014 Mar;60(3):541-8. doi: 10.1373/clinchem.2013.208538. Epub 2013 Dec 9.


Urinary biomarkers of kidney injury are associated with all-cause mortality in the Women's Interagency HIV Study (WIHS).

Peralta C, Scherzer R, Grunfeld C, Abraham A, Tien P, Devarajan P, Bennett M, Butch A, Anastos K, Cohen M, Nowicki M, Sharma A, Young M, Sarnak M, Parikh C, Shlipak M.

HIV Med. 2014 May;15(5):291-300. doi: 10.1111/hiv.12113. Epub 2013 Dec 3.


Acute HIV-1 seroconversion with an unusual plasma biomarker profile.

Aziz N, Detels R, Martinez-Maza O, Oishi J, Jamieson BD, Witt MD, Butch AW.

Clin Vaccine Immunol. 2013 Nov;20(11):1774-7. doi: 10.1128/CVI.00366-13. Epub 2013 Sep 4.


Comparisons of creatinine and cystatin C for detection of kidney disease and prediction of all-cause mortality in HIV-infected women.

Driver TH, Scherzer R, Peralta CA, Tien PC, Estrella MM, Parikh CR, Butch AW, Anastos K, Cohen MH, Nowicki M, Sharma A, Young MA, Abraham A, Shlipak MG.

AIDS. 2013 Sep 10;27(14):2291-9. doi: 10.1097/QAD.0b013e328362e874.


Adverse analytical findings with clenbuterol among U-17 soccer players attributed to food contamination issues.

Thevis M, Geyer L, Geyer H, Guddat S, Dvorak J, Butch A, Sterk SS, Schänzer W.

Drug Test Anal. 2013 May;5(5):372-6. doi: 10.1002/dta.1471. Epub 2013 Apr 4.


Contribution of genetic background, traditional risk factors, and HIV-related factors to coronary artery disease events in HIV-positive persons.

Rotger M, Glass TR, Junier T, Lundgren J, Neaton JD, Poloni ES, van 't Wout AB, Lubomirov R, Colombo S, Martinez R, Rauch A, Günthard HF, Neuhaus J, Wentworth D, van Manen D, Gras LA, Schuitemaker H, Albini L, Torti C, Jacobson LP, Li X, Kingsley LA, Carli F, Guaraldi G, Ford ES, Sereti I, Hadigan C, Martinez E, Arnedo M, Egaña-Gorroño L, Gatell JM, Law M, Bendall C, Petoumenos K, Rockstroh J, Wasmuth JC, Kabamba K, Delforge M, De Wit S, Berger F, Mauss S, de Paz Sierra M, Losso M, Belloso WH, Leyes M, Campins A, Mondi A, De Luca A, Bernardino I, Barriuso-Iglesias M, Torrecilla-Rodriguez A, Gonzalez-Garcia J, Arribas JR, Fanti I, Gel S, Puig J, Negredo E, Gutierrez M, Domingo P, Fischer J, Fätkenheuer G, Alonso-Villaverde C, Macken A, Woo J, McGinty T, Mallon P, Mangili A, Skinner S, Wanke CA, Reiss P, Weber R, Bucher HC, Fellay J, Telenti A, Tarr PE; MAGNIFICENT Consortium; INSIGHT; Swiss HIV Cohort Study.

Clin Infect Dis. 2013 Jul;57(1):112-21. doi: 10.1093/cid/cit196. Epub 2013 Mar 26.


Detection of the selective androgen receptor modulator S-4 (Andarine) in a doping control sample.

Starcevic B, Ahrens BD, Butch AW.

Drug Test Anal. 2013 May;5(5):377-9. doi: 10.1002/dta.1466. Epub 2013 Feb 21. No abstract available.


Value of a quality assessment program in optimizing cryopreservation of peripheral blood mononuclear cells in a multicenter study.

Aziz N, Margolick JB, Detels R, Rinaldo CR, Phair J, Jamieson BD, Butch AW.

Clin Vaccine Immunol. 2013 Apr;20(4):590-5. doi: 10.1128/CVI.00693-12. Epub 2013 Feb 13.


Does the analysis of the enantiomeric composition of clenbuterol in human urine enable the differentiation of illicit clenbuterol administration from food contamination in sports drug testing?

Thevis M, Thomas A, Beuck S, Butch A, Dvorak J, Schänzer W.

Rapid Commun Mass Spectrom. 2013 Feb 28;27(4):507-12. doi: 10.1002/rcm.6485.

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