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Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2011 by Universidad Católica de Valparaíso -- Chile
Vol. 14 No. 2, Issue of April 15, 2011
 

Table 1. Overview of the number of students [that were] analysed in the study.



Cohort

Regular group

Exchange group

1

54

12

2

22

37

3

38

23