MULTIMERIC, PARTICULARLY TRIMERIC OR HEXAMERIC PHARMACEUTICAL SUBSTANCES AND PREPARATIONS FOR THE TREATMENT OF CANCER, INFLAMMATORY BOWEL DISEASE, AND INFECTIOUS DISEASES; THERAPEUTIC AND DIAGNOSTIC PROTEINS AND POLYPEPTIDES FOR CLINICAL OR MEDICAL USE; PROTEIN, ANTIBODY, AND POLYPEPTIDE CONJUGATES FOR CLINICAL OR MEDICAL LABORATORY USE; DIAGNOSTIC AND ANALYTICAL PREPARATIONS, NAMELY, RECEPTOR TARGETED CONJUGATES,FUSION PROTEINS, CELL LINES PRODUCING PROTEINS, RADIOACTIVE AND DETECTABLY LABEL...