SIDE LETTER NO. 1 TO THE PLACEMENT AGENCY AGREEMENT As of January 13, 1998 Paramount Capital, Inc. 787 Seventh Avenue New York, New York 10019 Dear Sirs: This letter shall constitute Side Letter No. 1 to the Placement Agency Agreement (the "Placement...Agency Agreement • April 28th, 1998 • Procept Inc • Biological products, (no disgnostic substances)
