{HEAD ~ Two weaknesses} of {TAIL ~ current antiandrogens} are blamed for the failure to prevent prostate cancer progression from the hormone sensitive stage to the hormone refractory disease and to effectively treat hormone refractory prostate cancer 
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{ HEAD ~ Two weaknesses } of { TAIL ~ current antiandrogens } are blamed for the failure to prevent prostate cancer progression from the hormone sensitive stage to the hormone refractory disease and to effectively treat hormone refractory prostate cancer
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