. 2021 Oct 6;17(11):3887–3897. doi: 10.1080/21645515.2021.1969851

Table 3.

Top 10 productive corresponding author country in Covid-19 and vaccine safety research

SCR	Country (n = 80)	NP	TC	AAC	SCP	MCP	MCP_Ratio
1	USA	380	7677	20.203	307	73	0.192^a
2	China	121	3039	25.116	78	43	0.355^a
3	India	101	834	8.257	82	19	0.188^a
4	United Kingdom	94	2165	23.032	58	36	0.383^a
5	Italy	89	446	5.011	70	19	0.213^a
6	Canada	46	426	9.261	34	12	0.261^a
7	Australia	45	387	8.600	23	22	0.489^a
8	Germany	28	148	5.286	17	11	0.393^a
9	Spain	26	89	3.423	18	8	0.308^a
10	France	25	187	7.480	17	8	0.320^a

SCR: Standard Competition Ranking; TC: Total Citations, NP: Number of publications; AAC: Average Article Citations: SCP: Single Country Publication (intra-country collaboration). MCP: Multiple Country Publications (inter-country collaboration). ^a: Lower International Collaboration (Value: Less 0,50).