Mapping the landscape of gastric cancer immunotherapy: Bibliometric insights into advances and hotspots

Table 1 The table of national publication volume and citation situation

Rank	Country/region	Article counts	Centrality	Percentage (%)	Citation	Citation per publication
1	China	1536	0.06	52.86	24723	16.10
2	United States	503	0.13	17.31	28577	56.81
3	Japan	291	0.03	10.01	9887	33.98
4	Germany	156	0.08	5.37	5726	36.71
5	Italy	153	0.18	5.26	4772	31.19
6	South Korea	134	0.08	4.61	3473	25.92
7	England	117	0.22	4.03	5191	44.37
8	France	69	0.07	2.37	3432	49.74
9	Spain	55	0.08	1.89	2083	37.87
10	Iran	47	0.08	1.62	1003	21.34

Table 2 Publication status of institutions

Rank	Institution	Country	Number of studies	Total citations	Average citation
1	Fudan University	China	108	2695	24.95
2	Shanghai Jiao Tong University	China	86	2079	24.17
3	Nanjing Medical University	China	86	1385	16.10
4	Peking University	China	84	1530	18.21
5	Sun Yat Sen University	China	84	2465	29.35
6	Chinese Academy of Sciences	China	66	686	10.39
7	Chinese Academy of Medical Sciences - Peking Union Medical College	China	57	1257	22.05
8	Zhengzhou University	China	57	1262	22.14
9	University of Texas System	United States	56	7621	136.09
10	Zhejiang University	China	54	1616	29.93

Table 3 The top ten journals by productivity and citations

Rank	Journal	Article counts	Percentage (%)	IF	Quartile in category
1	Frontiers in Oncology	149	5.13	4.7	Q2
2	Frontiers in Immunology	127	4.37	7.3	Q2
3	Cancers	99	3.41	5.2	Q2
4	Journal for Immunotherapy of Cancer	45	1.55	10.9	Q1
5	Frontiers in Genetics	41	1.41	3.7	Q2
6	Cancer Immunology Immunotherapy	40	1.38	5.8	Q2
7	Frontiers in Cell and Developmental Biology	39	1.34	5.5	Q2
8	International Journal of Molecular Sciences	39	1.34	5.6	Q1
9	BMC Cancer	37	1.27	3.8	Q2
10	World Journal of Gastroenterology	36	1.24	4.3	Q2

IF: Impact factor.

Table 4 The top 10 authors by total publications

Rank	Author	Count	Location	Rank	Co-cited author	Citation
1	Lin Shen	33	China	1	Fuchs CS	570
2	Hao Liu	27	China	2	Jemal A	545
3	Kyoung-Mee Kim	24	Korea	3	Bang YJ	540
4	Jeeyun Lee	23	Korea	4	Kang YK	513
5	Baorui Liu	22	China	5	Janjigian YY	503
6	Hao Chen	21	China	6	Shitara K	479
7	Jia Wei	20	China	7	Bass AJ	437
8	Xiaotian Zhang	20	China	8	Smyth EC	401
9	He Li	19	China	9	Sung H	377
10	Chao Lin	18	China	10	Le DT	367

Table 5 The top 20 most popular keywords

Rank	Keyword	Counts	Rank	Keyword	Counts
1	Expression	574	11	T-cells	205
2	Chemotherapy	454	12	Microsatellite instability	202
3	Prognosis	349	13	Blockade	184
4	Open-label	315	14	PD-L1	171
5	Survival	279	15	Colorectal-cancer	163
6	Nivolumab	268	16	Gastroesophageal junction	161
7	Tumor microenvironment	252	17	Dendritic cells	150
8	Cells	238	18	Biomarker	149
9	Double-blind	226	19	Breast-cancer	139
10	Therapy	206	20	Regulatory t-cells	128