edited by Bertram G. Katzung ; associate editors, Susan B. Masters, Anthony J. Trevor. edited by Joseph R. Castro, associate editors, Thomas S. Meyler, Donald G. Baker. edited by Robert S. Eliot, associate editors, Gerald L. Wolf and Alan D. Forker. edited by George L. Trigg ; associate editors, Eduardo S. Vera, Walter Greulich. editor, Sarah S. Long ; associate editors, Larry K. Pickering, Charles G. Prober.