Covid: How a £20 gadget could save lives - BBC News
Amazon.com: Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor (SpO2) with Pulse Rate Measurements and Pulse Bar Graph, Portable Digital Reading LED Display, Batteries and Carry Case Included : Health & Household
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Racial bias is built into the design of pulse oximeters - The Washington Post
Experts call for urgent review of pulse oximeters - a vital tool that can save lives - European Lung Foundation
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Should pulse oximeters be used at home to track coronavirus symptoms? - ABC News
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British Journal of Community Nursing - Measuring oxygen saturation in homecare