1. Tuberculosis Research Section; National Institute of Allergy and Infectious Disease; NIH; Bethesda; MD; 20892; USA
2. Laboratory of Bioorganic Chemistry; National Institute of Diabetes and Digestive and Kidney Diseases; NIH; Bethesda; MD; 20892; USA
3. Electron Microscopy Unit; Rocky Mountain Laboratories; Research Technologies Branch; Hamilton; MT; 59840; USA