12 EXHIBIT 99.E AGREEMENT TO FILE JOINTLY We, the undersigned, hereby express our agreement that the attached Schedule 13D is filed on behalf of each of us. HOECHST MARION ROUSSEL, INC. Date: October 18, 1995 By: /s/ Rebecca R. Tilden Rebecca R....Agreement to File Jointly • October 19th, 1995 • Hoechst Marion Roussel Inc • Pharmaceutical preparations
