The Program in Molecular Medicine at the University of Massachusetts Medical School, established in 1989, represents many disciplines in the bio-medical sciences: biochemistry and molecular biology, cell biology, medicine, immunology, molecular genetics and microbiology, pediatrics, pharmacology, physiology, genomics, bioinformatics and proteomics. This diverse scientific environment supports our highly collaborative investigators as they probe increasingly difficult questions, yielding spectacular insights. Practicing science remains as exhilarating and rewarding as it has been in the past. These are key factors that make the Program an exceptional training ground for graduate students and postdoctoral fellows.