1	EMBASE	exp ADULT/	View results (8 180 639)
2	EMBASE	exp CHILD/	View results (2 571 562)
3	EMBASE	(1 OR 2)	View results (10 062 017)
4	EMBASE	exp CORONAVIRIDAE/ OR CORONAVIRUS/ OR "CORONAVIRUS INFECTION"/	View results (61 685)
		OR "CORONAVIRUS INFECTIONS"/ OR VIRUS/ OR "(COVID‐19).ti,ab" OR "(COVID19).ti,ab"
5	EMBASE	"SARS‐RELATED CORONAVIRUS"/ OR "RNA VIRUS"/	View results (9106)
6	EMBASE	(4 OR 5)	View results (69 724)
7	EMBASE	"SMELLING DISORDER"/ OR exp ANOSMIA/ OR exp HYPOSMIA/	View results (9313)
8	EMBASE	exp "SMELLING DISORDER"/ OR "NEUROLOGIC DISEASE"/	View results (136 148)
9	EMBASE	ANOSMIA/ OR DYSOSMIA/ OR HYPOSMIA/ OR "OLFACTORY HALLUCINATION"/	View results (14 313)
		OR PAROSMIA/ OR "TASTE ABNORMALITY"/ OR "TASTE ANOMALY"/ OR "TASTE ABSENCE"/
10	EMBASE	(7 OR 8 OR 9)	View results (143 896)
11	EMBASE	(3 AND 6 AND 10)	View results (141)
12	Medline	exp ADULT/	View results (7 081 727)
13	Medline	exp CHILD/	View results (1 882 783)
14	Medline	(12 OR 13)	View results (8 276 487)
15	Medline	CORONAVIRUS/ OR exp CORONAVIRIDAE/ OR "RNA VIRUSES"/ OR "(COVID19).ti,ab" OR "(COVID‐19).ti,ab"	View results (20 713)
16	Medline	ALPHACORONAVIRUS/ OR BETACORONAVIRUS/ OR GAMMACORONAVIRUS/	View results (555)
17	Medline	(15 OR 16)	View results (20 713)