Matsuda 2021.

Patient Sampling	Single‐group (se + sp) for each Ag test
Patient characteristics and setting	Symptomatic < 10 days Slightly contradictory r/e asymptomatic cases Sao Paulo, Brazil 3 service outpatient/inpatient/private clinics/hospitals in Sao Paolo Met
Index tests	ECO Test ECO Diagnostica Panbio Sample: NP, Ag POC presumably (15 min)
Target condition and reference standard(s)	RT‐PCR
Flow and timing	Sample size (cases): 108 (31)
Comparative
Notes