Research trends and hotspots in the immune microenvironment related to hepatocellular carcinoma: A bibliometric and visualization study

Table 1 The top 20 most productive institutions in the field

Rank	Institution	Country	Number of studies	Total citations	Average citation
1	Fudan University	China	165	4665	28.27
2	Sun Yat Sen University	China	149	4909	32.95
3	Zhejiang University	China	138	2552	18.49
4	Chinese Academy of Sciences	China	95	2124	22.36
5	Huazhong University of Science and Technology	China	95	1802	18.97
6	Chinese Academy of Medical Sciences-Peking Union Medical College	China	94	1116	11.87
7	Shanghai Jiao Tong University	China	88	1692	19.23
8	Southern Medical University-China	China	84	993	11.82
9	Zhengzhou University	China	81	1422	17.56
10	Nanjing Medical University	China	76	1577	20.75