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  1. Surveyees exposed to 4
    types of tobacco
  2. Surveyees exposed to 3
    types of tobacco
  3. Surveyees exposed to 2
    types of tobacco
  4. Surveyees exposed to 1
    types of tobacco


The visualization to the right portrays a "binning" system along the horizontal axis. Each column represents a test where a surveyed individual could fit into 1 of 3 outcomes. Red represents those that had exposure of this type. Blue represents those who did not have this type of exposure. Gray represents those thatdon't know.

Surveyed patients
diagnosed with
Multiple Sclerosis

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surveyed between the
ages of 16 and 71