序号

关键词

频次

中心性

年份

1

care

167

0.35

2003

2

hospital

117

0.1

2002

3

health care

100

0.22

2002

4

impact

71

0.36

2003

5

quality

70

0.04

2003

6

performance

57

0.25

2006

7

model

47

0.06

2008

8

nurse

46

0.09

2011

9

system

40

0.03

2008

10

outcm

37

0.05

2005

11

health

36

0

2010

12

implementation

29

0.09

2006

13

risk

26

0.05

2004

14

hospital management

25

0.53

2007

15

mortality

24

0.39

2009

16

management

22

0.16

2005

17

service

21

0.05

2003

18

patient safety

20

0.03

2010

19

experience

16

0.09

2007

20

emergency department

16

0

2013