Institution: | Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305-5107, USA.; Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Avenue da República (EAN), 2781-901 Oeiras, Portugal.; Division of Infectious Diseases, Department of Internal Medicine, Stanford University, Stanford, CA 94305-5107, USA. |