Neurologist Neurologist Gene Latorre, MD Gene Latorre, MD, tells about treatment advances for acute stroke. Researcher, tells about treatment advances for acute stroke. Researcher William Kerr, PhD, William Kerr, PhD, talks about a possible cause of Crohn's disease, an inflammatory bowel disorder.\xa0Pediatrician talks about a possible cause of Crohn's disease, an inflammatory bowel disorder.\xa0Pediatrician Kathryn E. Scott, MD, Kathryn E. Scott, MD, provides an overview of sickle cell disease. provides an overview of sickle cell disease.