"Testis"@en . "Mossman-pacey paradox"@en . . "Activin"@en . "Myostatin"@en . "Muscle hypertrophy"@en . "Darius Widera" . <0000-0003-1686-130X> . "Neuromuscular diseases"@en . "Adverse effects"@en . . . "Widera" . "Darius" .