Table 2: Identification and review of the study selection

and classification process by author.

Author

Full-text

articles

Classified

articles

Alanís Nava, JM

5

15

Arellano Romero, UE

1

25

Arreola Pérez, JD

2

25

Corona Días, E

25

10

Franco Ponce, LE

45

1

Hurtado Miranda, GF

10

15

Olán de los Santos, AI

74

38

Ortiz Márquez, JJ

11

15

San Pedro Rodríguez, I

1

31

Total

175

175