COMPOUND_XXX - D6 , the metabolite of COMPOUND_XXX , represented only a small fraction of the parent in all matrices investigated ( e.g. 0.3 % of the parent concentration in plasma ) whereby the highest fraction was found in urine ( 5.17 % ) .
COMPOUND_XXX - D6 , the metabolite of COMPOUND_XXX , represented only a small fraction of the parent in all matrices investigated ( e.g. 0.3 % of the parent concentration in plasma ) whereby the highest fraction was found in urine ( 5.17 % ) .
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