Medical technology, AI technology is utilized by doctors for diagnosing increasing the accuracy of patient treatments. Medical research and development innovation technology to improve patient health.Pcess609 | Istock | Getty ImagesAI startup OpenEvidence is raising a fresh round of capital from Sequoia to scale its chatbot for doctors. The new $75 million cash injection, which has not been previously reported, values OpenEvidence at $1 billion, the two companies told CNBC. OpenEvidence, based i...