1. TAP Pharmaceutical Products, Inc. (K.C., M.C.P., D.D.), Lake Forest, Illinois 60045;
2. School of Nursing (C.W.), Georgetown University, Washington, D.C. 20007;
3. Jenapharm GmbH & Co. (G.S.), 07745 Jena, Germany;
4. EnTec GmbH (W.E.), 07745 Jena, Germany