UTMB is accepting new, unused items for older patients; Dr. Lyuba Levine will discuss “Understanding clinical trials” at the GI cancer support group meeting; for a complete list of ongoing studies and volunteer opportunities, go to www.its.utmb.edu/research_postings; the department of anesthesiology is seeking healthy volunteers to take part in a study to evaluate a 3-D imaging technique to locate the femoral vein; the department of nutrition and metabolism is seeking male volunteers, 18 to 35, for a new study on exercise, nutrition and muscle growth.