urine testing detects the actual substance.
blood testing analyzes the composition of the blood such as red blood cell counts (hematacrit levels) of which can be manipulated by other means other than PEDs, such as hyperbaric chambers, altitude tents, training in elevation, etc.
blood testing analyzes the composition of the blood such as red blood cell counts (hematacrit levels) of which can be manipulated by other means other than PEDs, such as hyperbaric chambers, altitude tents, training in elevation, etc.
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