A snapshot of pneumonia research activity and collaboration patterns (2001–2015): a global bibliometric analysis

Table 8 Distribution of participation by countries in the most prestigious 10% of journals

Country	N of docs	%	Rank	N docs International collaboration	%	N cites	Citation Rate	Rank
USA	1954	47.66	1	627	32.09	139,247	71.26	1
UK	473	11.54	2	263	55.6	34,471	72.88	2
Japan	132	3.22	11	55	41.67	6782	51.38	11
Germany	285	6.95	5	177	62.1	16,636	58.37	7
France	401	9.78	3	152	37.9	26,174	65.27	3
Spain	373	9.1	4	173	46.38	25,387	68.06	4
China	105	2.56	12	51	48.57	4926	46.91	14
Canada	271	6.61	6	141	52.03	19,291	71.18	5
Netherlands	256	6.24	7	118	46.09	16,820	65.7	6
Italy	174	4.24	8	111	63.79	11,626	66.82	9
Australia	161	3.93	9	89	55.28	9688	60.17	10
Brazil	78	1.9	14	49	62.82	2629	33.7	22
Switzerland	154	3.76	10	113	73.38	13,206	85.75	8
South Korea	50	1.22	19	19	38	2226	44.52	23
Taiwan	41	1	22	15	36.58	1568	38.24	30

ISSN: 1471-2288