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High amounts of 17-methylated anabolic-androgenic steroids in effervescent tablets on the dietary supplement market.Parr MK, Geyer H, Hoffmann B, Köhler K, Mareck U, Schänzer W.Biomed Chromatogr. Research of stimulants and anabolic steroids in dietary supplements.Baume N, Mahler N, Kamber M, Mangin P, Saugy M.Scand J Med Sci Sports. Modulation of exercise training related adaptation of body composition and regulatory pathways by anabolic steroids.Reitzner SM, Hengevoss J, Isenmann E, Diel P.J Steroid Biochem Mol Biol.