Importance of updating old cohorts for new findings

Mustard gas, or sulfur mustard, is a chemical with devastating acute toxic effects. The development, production, acquisition, stockpiling and transfer of all chemical weapons, including mustard gas, were banned by The Chemical Weapons Convention of 1997. However, mustard gas was used as a chemical warfare agent during many international political conflicts and wars of the twentieth century. A known, highly toxic, mutagenic carcinogen in animal...