Table 1.

The top 10 productive countries with publications concerning IL-33.

Rank	Countries	Np	Countries	Nc	Countries	Total Link Strength
1	USA	1354	USA	81160	USA	910
2	China	1172	England	26369	England	490
3	Japan	515	China	20774	Germany	393
4	England	323	Japan	18387	China	377
5	Germany	303	Germany	15937	France	278
6	France	238	France	14494	Netherlands	243
7	Italy	230	Netherlands	13432	Australia	218
8	South Korea	209	Scotland	12185	Switzerland	211
9	Canada	159	Switzerland	9843	Scotland	206
10	Netherlands	152	Italy	9632	Italy	193