Radiation therapy, Brain stereotactic radiosurgery, Stereotactic body radiotherapy, Radiation therapy for prostate canc...er, Stereotactic radiosurgery, Image-guided radiation therapy, Intensity-modulated radiation therapy, SBRT for prostate cancer, Radiation therapy for bladder cancer, Prostate cancer, Bladder cancer, Skin cancer, Renal cell carcinoma, Kidney cancer, Melanoma, Brain metastasis, Squamous cell carcinoma of the skin, Basal cell carcinoma, Testicular cancer, Metastatic prostate cancer, Bone metastasis, Liver metastasis, Penile cancer, Lung metastasis, Metastatic spinal cord compression