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One of my sisters was diagnosed with breast cancer 11 years ago. She went through a series of radiation treatments and has been cancer free now for years.
I happened to see a program on TV about this "Sister Study". It's a 10 year research program studying the sisters of women who have/had breast cancer. Mostly it's a lot of questions, but every couple years they come & get blood work, vital statistics, and samples from me and my house. I'm happy to help them anyway I can!