By Robert G. McKinnell (University of Minnesota), Ralph E. Parchment (Wayne State University), Alan O. Perantoni (National Cancer Institute, Bethesda, Maryland), G. Barry Pierce (University of Colorado Medical Center)
By Jean Clobert (, Universite Pierre et Marie Curie, Paris), Etienne Danchin (, Andre A. Dhondt (, Cornell University, Ithaca), James D. Nichols (, Patuxent Wildlife Research Centre, Maryland)
By Daniel Lednicer (National Cancer Institute, Bethesda, Maryland), Lester A. Mitscher (The University of Kansas, Lawrence), Gunda I. Georg (The University of Kansas
By Daniel Lednicer (National Cancer Institute, Bethesda, Maryland)
