TABLE 1.

The top 10 productive countries or regions and institutions of FD research.

Rank	Country	Centrality	Count (% of 2,957)	Rank	Institutions	Centrality	Count (% of 2,957)
1	USA	0.2	567 (19.17)	1	Mayo Clin (USA)	0.01	109 (3.69)
2	China	0	420 (14.20)	2	Univ Newcastle (England)	0.03	86 (2.91)
3	Japan	0.09	371 (12.55)	3	Katholieke Univ Leuven (Belgium)	0.06	50 (1.69)
4	Australia	0.2	191 (6.46)	4	Univ Leuven (Belgium)	0.04	49 (1.66)
5	England	0.13	174 (5.78)	5	McMaster Univ (Canada)	0.13	48 (1.62)
6	Italy	0.04	170 (5.75)	5	Chengdu Univ Tradit Chinese Med (China)	0.03	48 (1.62)
7	Belgium	0.02	162 (5.48)	6	Hyogo Coll Med (Japan)	0.07	40 (1.35)
8	South Korea	0.01	161 (5.44)	7	Nippon Med Sch (Japan)	0.06	38 (1.29)
9	Germany	0.2	142 (4.80)	7	Univ Adelaide (Australia)	0.07	38 (1.29)
10	Canada	0.25	118 (3.99)	8	China Acad Chinese Med Sci (China)	0.09	36 (1.22)
				8	Univ Malaya (Malaysia)	0.11	36 (1.22)
				9	Beijing Univ Chinese Med (China)	0.02	34 (1.15)
				10	Macquarie Univ (Australia)	0.04	31 (1.04)