PTEN and prostate cancer: Mithal Mithal P P Allott Allott E E Gerber Gerber L L PTEN loss in biopsy tissue predicts poor clinical outcomes in prostate cancer PTEN loss in biopsy tissue predicts poor clinical outcomes in prostate cancer Int J Urol Int J Urol 2014 2014 21 21 1209 1209 1214 1214 supplied-pmid 25099119?