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Which guide in COVID-19 has implemented three-level pre-inspection and diversion?

Technical Guide for Prevention and Control of novel coronavirus Infection in Medical Institutions (First Edition). COVID-19's "Technical Guide for Prevention and Control of novel coronavirus Infection in Medical Institutions (First Edition)" implemented three-level pre-examination and triage. Conditional medical institutions should implement three-level pre-examination and triage in outpatient and emergency departments, nurses' stations and consulting rooms, so as to minimize the spread risk of novel coronavirus in medical institutions.