Gascon M, Vrijheid M, Martinez D, Ballester F, Basterrechea M, Blarduni E, Esplugues A, Vizcaino E, Grimalt JO, Morales E, Sunyer J, Infancia y Medio Ambiente Environment and Childhood Project. Pre-natal exposure to dichlorodiphenyldichloroethylene and infant lower respiratory tract infections and wheeze. Eur Respir J. 2012 May;39(5):1188-96. doi: 10.1183/09031936.00011711