In the Science study, 304 complex cases published in the New England Journal of Medicine were evaluated without physical examinations or medical imaging available to the AI or human doctors.

From the articleMicrosoft Says Its New AI Is More Than Twice as Good at Diagnosing Diseases as DoctorsAlso in Microsoft AI beats generalist doctors in simulated complex cases, Suleyman says | Межа, Microsoft’s Mustafa Suleyman says its AI outperforms doctors on hard cases as he chases ‘medical superintelligence’, Microsoft develops AI tool that can diagnose 'sequentially' like a doctor | Reuters, Microsoft's AI diagnostic system outperforms doctors in complex cases, Microsoft says its AI tool is better than doctors at diagnosing conditions, Microsoft AI tool beat generalist doctors at step-by-step diagnosis