[Frontiers in Bioscience 2, d197-206, May 1, 1997]

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Robert D. Stout1 and Jill Suttles2

Program in Immunology, Departments of Microbiology1 and Biochemistry2, James H. Quillen College of Medicine at East Tennessee State University, Johnson City, TN, USA

Received 4/15/97; Accepted 4/18/97; On-line 5/1/97


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