Arteries Embolization Therapeutic/*adverse effects/methods/standards Humans Kallikreins/blood Lower Urinary Tract Symptoms/blood/etiology/*therapy Male Practice Guidelines as Topic Prostate/blood supply Prostate-Specific Antigen/blood Prostatic Hyperplasia/blood/complications/*therapy Quality of Life Treatment Outcome *arteries *embolization *investigational *prostatic hyperplasia *therapeutic *therapies *treatment outcome