From the Laboratory of Pneumology, Unit of Lung Toxicology (A.N., P.H.M.H., B.N.), and Center for Molecular and Vascular Biology (J.V., M.F.H.), Kapholieke Universiteit Leuven, Leuven, Belgium, and Medical Research Council Toxicology Unit (D.D.), Leicester, United Kingdom. (At 2003-03-04)
