Cluster 592: brachytherapy radiation prostate therapy external beam prostatectomy prior cryotherapy radical 
Cluster 597: beam external brachytherapy pelvic radiation radiotherapy prior received therapy prostate 
Cluster 984: radical prostatectomy prostate cystectomy cryosurgery cancer undergo scheduled adenocarcinoma patients 
Cluster 1147: prostatectomy prostate prior cancer therapy cryosurgery cryotherapy radiation hyperthermia patients