Mustard gas.
D000818:Animals; D002273:Carcinogens / Q000633:toxicity*; D002619:Chemical Warfare Agents / Q000633:toxicity*; D004781:Environmental Exposure; D033161:Government Regulation; D006801:Humans; D009151:Mustard Gas / Q000633:toxicity*; D014481:United States
D002273:Carcinogens; D002619:Chemical Warfare Agents; D009151:Mustard Gas