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AI-Powered App Enables Anemia Screening Using Fingernail Selfies
(news.chapman.edu)
This is a most excellent place for technology news and articles.
This is not a reliable way to test for anemia.
It's good that they're using it to screen for it then.
It's like the blood pressure screening you get every time you go to the doctor. It can't detect hypertension on its own, but can point you to the necessity for a test for it.
I imagine the end goal would be a machine that you put your fingers in and gives a chance of anemia present. That could be a screening for a proper anemia diagnosis.