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:

Coagulopathies (with prothrombin concentration less than 60% or INR more than 1.5)
In-ability to postpone anti-coagulation medications.
Infection or injury or a lesion at the block site.
Suspected cervical vertebral column injury necessitating using a neck collar.
A compromised lung on the contralateral side of the block (Pneumothorax, hemothorax or Pneumonectomy).
Traumatic vascular injuries or operative interventions (Surgical harvesting) involving arteries of the upper limb on the operative side.
Patients with communication difficulties.
Hypersensitivity to local anesthetics and/or Dexamethasone.
Patients on perioperative intravenous (IV) steroids.
{"Condition": ["cervical vertebral column injury", "compromised lung", "lesion", "Infection", "Coagulopathies", "Pneumonectomy", "injury", "communication difficulties", "Traumatic vascular injuries", "hemothorax", "Hypersensitivity", "Pneumothorax"], "Device": [], "Drug": ["intravenous (IV) steroids", "Dexamethasone", "local anesthetics", "anti-coagulation medications"], "Measurement": ["INR", "prothrombin concentration"], "Mood": ["In-ability to postpone", "Suspected"], "Multiplier": [], "Negation": [], "Observation": [], "Person": [], "Procedure": ["operative interventions", "Surgical harvesting"], "Qualifier": ["at the block site", "arteries of the upper limb on the operative side", "contralateral side of the block"], "ReferencePoint": [], "Scope": ["Infection or injury or a lesion", "Traumatic vascular injuries or operative interventions (Surgical harvesting)", "prothrombin concentration less than 60% or INR more than 1.5", "Pneumothorax, hemothorax or Pneumonectomy", "local anesthetics and/or Dexamethasone"], "Temporal": ["perioperative"], "Value": ["less than 60%", "more than 1.5"], "Visit": []}