You will be shown inclusion or exclusion criteria for a clinical trial. Given these criteria, your task is to extract all unique entities of the following types: ["Observation", "Condition", "Procedure", "Drug", "Temporal", "Multiplier", "Qualifier", "Negation", "ReferencePoint", "Scope", "Value", "Mood", "Device", "Visit", "Measurement", "Person"].

Please return the output as a JSON object of the format: {"Condition" : ["breast cancer", ...], "Device" : ["ports", ...], "Drug" : ["Atenolol", ...], "Measurement" : ["blood pressure", ...], "Mood" : ["suspected", ...], "Multiplier" : ["more than two", ...], "Negation" : ["no", ...], "Observation" : ["history", ...], "Person" : ["male", ...], "Procedure" : ["surgery", ...], "Qualifier" : ["severe", ...], "ReferencePoint" : ["enrollment", ...], "Scope" : ["infection", ...], "Temporal" : ["one day", ...], "Value" : ["50%", ...], "Visit" : ["ICU", ...]}. The keys should be entity types and values should be lists of extracted entities belonging to the corresponding type. If you cannot find entities belonging to a specific type, the value should be [].

Only output the JSON object and do not include any additional text.

Abstract:

History of prostate, bladder, or rectal cancer 
History of transurethral resection of the prostate (TURP), open prostate surgery, or radiofrequency or microwave therapies 
History of open bladder, rectosigmoid colon, or other pelvic surgery 
Patient is unwilling to discontinue alpha blockers 1 month after study treatment 
Patient is unwilling to discontinue 5-alph reductase inhibitors 1 month after study treatment 
Neurogenic bladder or other neurologic disorder impacting bladder function such as Parkinson's disease, multiple sclerosis, cerebral vascular accident or diabetes 
Any other confounding bladder or urethral pathology, including urethral stricture, bladder neck contracture, or bladder atonia 
Active prostatitis or urinary tract infection 
Cystolithiasis within the past 3 months 
Serum creatinine > 1.7mg/dL 
Inability to discontinue oral anticoagulant 2-5 days prior to study treatment 
Coagulation disturbances not normalized by medical treatment 
Iodinated contrast allergy that, in the opinion of the Investigator, cannot be adequately premedicated 
Gelatin allergy 
Known severe peripheral vascular disease or major iliac arterial occlusive disease 
Interest in future fertility 
Clinically significant cardiac arrhythmia or other cardiac disease (including congestive heart failure), uncontrolled diabetes mellitus, clinically significant respiratory disease, or known immunosuppression 
Other condition that the Investigator believes puts the patient at risk for a complication during the procedure
{"Condition": ["rectal cancer", "cardiac arrhythmia", "urinary tract infection", "iliac arterial occlusive disease", "bladder neck contracture", "congestive heart failure", "diabetes", "multiple sclerosis", "Cystolithiasis", "peripheral vascular disease", "Coagulation disturbances", "bladder cancer", "respiratory disease", "cerebral vascular accident", "Neurogenic bladder", "neurologic disorder impacting bladder function", "bladder atonia", "allergy", "cardiac disease", "urethral pathology", "Parkinson\u0027s disease", "immunosuppression", "bladder pathology", "urethral stricture", "diabetes mellitus", "prostate cancer", "prostatitis"], "Device": [], "Drug": ["5-alph reductase inhibitors", "Iodinated contrast", "alpha blockers", "oral anticoagulant", "Gelatin"], "Measurement": ["Serum creatinine"], "Mood": [], "Multiplier": [], "Negation": ["not"], "Observation": [], "Person": [], "Procedure": ["pelvic surgery", "open bladder surgery", "transurethral resection of the prostate (TURP)", "microwave therapies", "medical treatment", "rectosigmoid colon surgery", "radiofrequency", "open prostate surgery"], "Qualifier": ["normalized", "clinically significant", "severe", "major", "uncontrolled"], "ReferencePoint": ["study treatment"], "Scope": ["urethral stricture, bladder neck contracture, or bladder atonia", "Neurogenic bladder Parkinson\u0027s disease, multiple sclerosis, cerebral vascular accident or diabetes", "bladder or urethral pathology"], "Temporal": ["within the past 3 months", "Active", "1 month after study treatment", "2-5 days prior to study treatment"], "Value": ["\u003e 1.7mg/dL"], "Visit": []}