Flowcharts are basis for symptom-based tools.
D000465:Algorithms; D004636:Emergency Service, Hospital / Q000458:organization & administration*; D019317:Evidence-Based Medicine; D006801:Humans; D009515:New Jersey; D010818:Practice Patterns, Physicians' / Q000592:standards; D012985:Software Design; D014218:Triage / Q000379:methods* / Q000592:standards