1. Faculty of Chemistry, University of Belgrade, 11001 Belgrade, Yugoslavia, Centro di Spettrometria di Massa Proteomica e Biomolecolare, Istituto di Scienze dell'Alimentazione, Consiglio Nazionale delle Ricerche, Avellino, Italy, Institute of Chemistry, Technology and Metallurgy, Belgrade, Yugoslavia, Laboratoire de Chimie Physique et de Cristallographie, Université Catholique de Louvain, Louvain-la-Neuve, Belgium, and Division of Experimental Therapeutics, Walter Reed Army Institute of Research,...