On March 3, 2006 Dr. Stark presented a primer on cytogenetics and its use in clinical diagnostics. Dr. Diane Maia of the Pathology Department at De Paul Hospital in Norfolk presented details of how these tests are done and Dr. Stark provided the clinical relevance. The emphasis of the talk was on the molecular biology of the so-called Philadelphia Chromosome but the concepts were widely applicable. Please click here to see the presentation.