Table 1

Search strategy for PubMed

No	Search items
1	SARS-CoV-2
2	Severe Acute Respiratory Syndrome coronavirus 2
3	COVID-19
4	Coronavirus Disease 2019
5	2019-nCOV
6	2019 Novel Coronavirus
7	OR/1–6
8	Male reproductive function
9	Male reproducti*
10	Male reproductive health
11	Male reproductive system
12	Male gonadal function
13	Male infertil*
14	Male fertil*
15	Semen*
16	Sperm*
17	Male genital*
18	OR/8–17
19	Observational study
20	Cohort study
21	Case–control study
22	OR/19–21
23	7 AND 18 AND 22