1. From the Myeloma Institute for Research and Treatment, University of Arkansas for Medical Sciences, Little Rock; Centraalbureau voor Schimmelcultures, Baarn, The Netherlands; Center for Infectious Diseases, University of Texas Medical School, Houston; John L. McClellan Memorial Veterans Hospital and University of Arkansas for Medical Sciences, Little Rock; and Immunocompromised Host Section, National Cancer Institute, National Institutes of Health, Bethesda, MD.