[1] YESHIVA UNIV,ALBERT EINSTEIN COLL MED,DEPT MOLEC PHARMACOL,BRONX,NY 10461
[2] UNIV ROME,INST APPL BIOCHEM,I-00185 ROME,ITALY
[3] CNR,CTR MOLEC BIOL,I-00185 ROME,ITALY
[4] BELL TEL LABS INC,MURRAY HILL,NJ 07974
[5] YESHIVA UNIV,ALBERT EINSTEIN COLL MED,DEPT MOLEC BIOL,BRONX,NY 10461