Lesser of 2 evils.
D001673:Biodegradation, Environmental; D002619:Chemical Warfare Agents; D004463:Ecology; D006540:Herbicides; D010848:Picolinic Acids; D014481:United States; D014744:Vietnam
D002619:Chemical Warfare Agents; D006540:Herbicides; D010848:Picolinic Acids