2604-1227

2604-1227

S2604-12272020000600260

10.24875/rmo.m20000134

Chile

00 12 2020

00 12 2020

94 6 260 273

1

1994 272

1367-71

2

1995 310

1085-6

3

2000 2nd ed

4

2002

5

2001

6

1977 32

752-60

7

2012

8

for the QUOROM group

1999 354

1896-900

9

and the PRISMA Group

2009 6

10

2010 135

507-11

11

2018 92 3 3

153-9

12

2006 2 2

13

1997 315 7109 7109

629-34

14

2002 21 11 11

1539-58

15

2003 327

557-60

16

1997 337 8 8

536-42