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Wells Score for PE
Assess clinical probability of pulmonary embolism using the Wells criteria
PERC Rule
Pulmonary Embolism Rule-out Criteria to safely exclude PE without D-dimer testing
NEXUS Criteria for C-Spine
National Emergency X-Radiography Utilization Study criteria to determine need for cervical spine imaging
Canadian CT Head Rule
Clinical decision rule to determine need for CT head in minor head injury patients