This study was carried out in 2001, in collaboration with the Universitat de les Illes Balears.

Authors: Raquel Abad Antoranz, Elvira Álvarez Pérez, Josep Coll Monserrat and Antonio Luque Aguilar. Coordinated by PhD. Isabel Moreno Castillo.

Annex: Introduction and Conclusions (in Spanish.)

Introduction (in Spanish)

Conclusions (in Spanish)