SPECIAL TOPICS

H1N1 Flu - September 2009

Top 20 Overall:
Authors | Institutions | Journals | Nations

The resulting database contained 110 nations. Ranked by three separate measures Citations, Papers, and Citations Per Paper. Source dates: 1999-June 30, 2009 (third bimonthly period 2009). Unless otherwise specified, all rankings have a 5 paper threshold for all measures.

Citations Per Paper ( 7 papers)
Rank	Nation	Citations	Papers	Citations Per Paper
1	USA	74448	3766	19.77
2	Japan	11373	938	12.12
3	England	17692	859	20.60
4	Peoples R China	10458	611	17.12
5	Germany	6409	488	13.13
6	Netherlands	6709	425	15.79
7	Canada	5161	410	12.59
8	France	3764	362	10.40
9	Italy	4669	341	13.69
10	Australia	4005	338	11.85
11	Switzerland	3659	200	18.30
12	Russia	2489	182	13.68
13	Spain	1768	153	11.56
14	Thailand	3260	136	23.97
15	Sweden	1799	119	15.12
16	South Korea	1060	118	8.98
17	Belgium	1555	111	14.01
18	Israel	1175	100	11.75
19	Taiwan	545	96	5.68
20	Vietnam	2650	66	40.15

Top 20 Overall:
Authors | Institutions | Journals | Nations