[1] UNIV AIX MARSEILLE 1,FAC PHARM,BIOL CELLULAIRE LAB,URA CNRS 1924,F-13387 MARSEILLE,FRANCE
[2] IRCM,LAB BIOCHEM NEUROENDOCRINOL,MONTREAL,PQ HZW IR7,CANADA
[3] PROT ENGN NETWORK CTR EXCELLENCE,MONTREAL,PQ HZW IR7,CANADA
[4] INSERM U387,F-13009 MARSEILLE,FRANCE