Increased metalloproteinase activity, oxidant production, and emphysema in surfactant protein D gene-inactivated mice - Wert,S.E.; Yoshida,M.; LeVine,A.M.; Ikegami,M.; Jones,T.; Ross,G.F.; Fisher,J.H.; Korfhagen,T.R.; Whitsett,J.A. (Proc Natl Acad Sci USA, 2000)