'Helen Free helped invent the strips that those with this disease first used to check glucose levels'
diabetes
SHE INVENTED WHAT?: Helen Free helped invent the strips that those with this disease first used to check glucose levels
Helen Free helped invent the strips that those with this disease first used to check glucose levels
Helen Free helped invent the strips that those with this disease first used to check glucose levels
SHE INVENTED WHAT?
diabetes
SHE INVENTED WHAT?