" He identified genetic variants in the enzymes of the human cytochrome P450 system and showed that they explain the variable clinical response to drugs."

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Very unclear what claim is being made here. is the claim that he discovered that ANY vars in p450 explain drug response, or he discovered some specific ones and how they affect response to certain drugs. there is no source provided for this so no way to see. Jytdog (talk) 12:19, 12 October 2014 (UTC)Reply