EXHIBIT 99.A ------------Agreement to File Jointly • March 31st, 1998 • Hoechst Marion Roussel Inc • Pharmaceutical preparations
Contract Type FiledMarch 31st, 1998 Company Industry
EXHIBIT 99.A ------------Agreement to File Jointly • March 31st, 1998 • Hoechst Marion Roussel Inc • Pharmaceutical preparations
Contract Type FiledMarch 31st, 1998 Company Industry