1. Baylor College of Medicine, Houston, Texas (D.Y.G., K.G.H.)
2. Jesscan Medical Research, Miami, Florida (Y.C.)
3. BI Research Center, Houston, Texas (J.M.)
4. GW Research, Inc., Chula Vista, California (G.W.)
5. Independent Consultant to Pharmaceutical companies, New York, New York (I.N.K.)