DR Golomb's studyBy Julie SteenhuysenCHICAGO, March 10 (Reuters) - Exposure to pesticides, nerve agents and other chemicals may explain the chronic, multi-symptom health problems experienced by up to one-third of Gulf War veterans, U.S. researchers said on Monday.They said an analysis of a host of studies offers compelling evidence that the fatigue, muscle or joint pain, memory and sleep problems,