Authors: Juan Ferrandiz; Juan J Abellan; Virgilio Gomez-Rubio; Antonio Lopez-Quilez; Pilar Sanmartin; Carlos Abellan; Miguel A Martinez-Beneito; Inmaculada Melchor; Hermelinda Vanaclocha; Oscar Zurriaga; Ferran Ballester; Jose M Gil; Santiago Perez-Hoyos; Ricardo Ocana Journal: Environ Health Perspect Date: 2004-06 Impact factor: 9.031