Affiliation: | (1) Department of Immunology, University Hospital, 3508 GA, Utrecht, The Netherlands, NL;(2) Laboratory of Biochemistry, National Cancer Institute, National Institutes of Health, 37 Convent Dr., Bldg 37/Rm 4D-25, Bethesda, MD 20892, USA Tel.: +1-301-435-2033; Fax: +-301-402-3095 E-mail: MORTINM@DC37A.NCI.NIH.GOV, US |