0864-2141

0864-2141

S0864-21412020000400003

Cuba

00 12 2020

00 12 2020

34 4

1

2017 12 5 5

202-9

2

2018 21 1 1

33-56

3

2017 55 7 7

1-18

4

2009

5

UNESCO 2020

6

2013

7

World Medical Association Declaration of Helsinki 2013

8

2018 21 2 2

69-82

9

2016 61

488-506

10

2018 7 2 2

53-63

11

2019 3 10 10

154-74

12

2003 11 1 1

3-4

13

2013

14

2002

15

2016 47 4 4

748-62