Institution: | (1) Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 20892 Bethesda, MD, USA;(2) Present address: Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de Mexico, Ap. Postal 70-228, 04510 México D.F., México;(3) National Institute of Allergy and Infectious Diseases, National Institutes of Health, Building 10, Rm. 11N311, 20892 Bethesda, MD, USA |