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1 From the Department of Pathology, Duke University School of Medicine, Durham (A.D.), and the Department of Biology, North Carolina Agricultural and Technical State University, Greensboro (J.L.G.) - both in North Carolina.
1 From the Department of Pathology, Duke University School of Medicine, Durham (A.D.), and the Department of Biology, North Carolina Agricultural and Technical State University, Greensboro (J.L.G.) - both in North Carolina.