How long did madame curie work with Radium before she died from it.

Question: How long did madame curie work with Radium before she died from it.
- Keywords:
  madam curie,
  radiation,
  radium
Asked by Alexander Morganov to Marikka on 17 Nov 2014.
- Marikka Beecroft answered on 17 Nov 2014:
  
  She discovered radium in 1898 and stopped working with it around 1929 so roughly she worked with it for 31 years. She died though in 1934, 5 years after she stopped working in the laboratory.

Question: How long did madame curie work with Radium before she died from it.