Forest plot built with the meta-analysis program "Comprehensive
Meta-analysis Vers. 1.0". [Borenstein, M. J., & Rothstein, H. (1999).
Comprehensive meta-analysis: A computer program for research synthesis.
Englewood, NJ: Biostat, Inc.]
The Meta-Analysis Unit. Faculty of Psychology.
Campus de Espinardo, University of Murcia. 30100-Murcia (Spain).
Tlf: +34 868884114, Fax: +34 868883439, e-mail: jsmeca@um.es