Rank

Co-occurence

Keyword

Rank

Centrality

Keyword

1

2

3

4

5

6

7

8

9

10

217

152

136

99

48

39

39

31

23

22

Acupuncture

Infertility

Pregnancy rate

In vitro fertilization

Complementary medicine

Embryo transfer

Traditional chinese medicine

Polycystic ovary syndrome

Stimulation

Meta-analysis

1

2

3

4

5

6

7

8

9

10

0.35

0.18

0.15

0.15

0.15

0.15

0.13

0.09

0.09

0.09

Complementary medicine

Double blind

Women

Analgesia

Efficacy

Embryo transfer

Traditional chinese medicine

Blood flow impedance

Controlled trial

Activation