[1] Univ Geneva, Univ Lausanne, CMU, Sch Pharmaceut Sci, Rue Michel Servet 1, CH-1211 Geneva 4, Switzerland
[2] Gustavus Adolphus Coll, Dept Chem, St Peter, MN 56082 USA
[3] Waters Corp, 34 Maple St, Milford, MA 01757 USA
[4] Ctr Immunol Pierre Fabre, 5 Ave Napoleon III,BP 60497, St Julien En Genevois, France