0187-5337

0187-5337

S0187-53372021000200051

10.24875/per.22000003

México

00 08 2021

00 08 2021

35 2 51 56

1

Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network

2015 314

1039-51

2

2017 139

3

1997 100

E4

4

1999 27

484-9

5

1999 81

F162-7

6

1998 275 1 Pt 1 1 Pt 1

L110-7

7

1996 97

210-5

8

1999 160

1333-46

9

2000 105 1 Pt 1 1 Pt 1

112-4

10

1993 148

1194-203

11

1998 157

294-323

12

1998 25

49-61

13

1983 309

204-9

14

1985 312 21 21

1353-7

15

2006 41

364-6

16

1998 157

294-323

17

2000 105

1209-15

18

2007 83

183-9

19

2012 38

1358-64

20

2004 38

240-5

21

2006 149

308-13

22

2017 10 10 10

CD003666

23

2007 96

1115-7

24

2011 96

F146-8

25

2010 157

767-71

26

2019 82

791-4

27

2014 99

F158-65