School of Medicine (Bioinformatics Program), University of Costa Rica, San Pedro de Montes de Oca, 2060 San José, Costa Rica. Tel.: +506-215448, Fax: +506-25114570, bioinformatica.em@ucr.ac.cr.|School of Medicine (Bioinformatics Program), University of Costa Rica, San Pedro de Montes de Oca, 2060 San José, Costa Rica. Tel.: +506-215448, Fax: +506-25114570, bioinformatica.em@ucr.ac.cr.|School of Medicine (Bioinformatics Program), University of Costa Rica, San Pedro de Montes de Oca, 2060 San José, Costa Rica. Tel.: +506-215448, Fax: +506-25114570, bioinformatica.em@ucr.ac.cr.|School of Medicine (Bioinformatics Program), University of Costa Rica, San Pedro de Montes de Oca, 2060 San José, Costa Rica. Tel.: +506-215448, Fax: +506-25114570, bioinformatica.em@ucr.ac.cr.|School of Medicine (Bioinformatics Program), University of Costa Rica, San Pedro de Montes de Oca, 2060 San José, Costa Rica. Tel.: +506-215448, Fax: +506-25114570, bioinformatica.em@ucr.ac.cr.|School of Medicine (Bioinformatics Program), University of Costa Rica, San Pedro de Montes de Oca, 2060 San José, Costa Rica. Tel.: +506-215448, Fax: +506-25114570, bioinformatica.em@ucr.ac.cr.