Chemical Warfare AgentsChemical WarfareMustard GasBiological WarfareHerbicidesSarinPhosphoric Triester HydrolasesSomanMilitary ScienceHuman ExperimentationOrganothiophosphorus CompoundsDecontaminationOrganophosphatesOrganophosphorus CompoundsVeteransCholinesterase InhibitorsHerbicide ResistanceIraqSalivary Gland DiseasesBiological Warfare AgentsMilitary MedicineButyrylcholinesterasePersian Gulf SyndromeBurns, ChemicalEye BurnsPsychological Warfare