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Helen Murray Free Dies at 98; Chemist Developed Diabetes Test

Helen Murray Free Dies at 98; Chemist Developed Diabetes Test
She and her husband invented a dip-and-read paper strip that greatly simplified the diagnosis of the disease and paved the way for home test kits.
Helen and Al Free at Miles Laboratories in Indiana (later acquired by Bayer). The paper-strip test they developed made it easier for clinicians to diagnose diabetes and cleared the way for home test kits.Credit...Bayer
By Denise Gellene
May 3, 2021, 3:08 p.m. ET
Helen Murray Free, a chemist who ushered in a revolution in diagnostic testing when she co-developed the dip-and-read diabetes test, a paper strip that detected glucose in urine, died on Saturday at a hospice facility in Elkhart, Ind. She was 98.

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