Respiratory symptoms in relation to indoor exposure to mite and cat allergens and endotoxins
U. Gehring, J. Heinrich, B. Jacob, K. Richter, B. Fahlbusch, G. Schlenvoigt, W. Bischof, H-E. Wichmann
European Respiratory Journal Sep 2001, 18 (3) 555-563; DOI: 10.1183/09031936.01.00096801