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Amazon.com: iHealth AIR Rechargeable Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor with App, SpO2, Pulse Rate, Plethysmograph, and Perfusion Index : Health & Household
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LOOKEE® A310L (Black) Premium Fingertip Pulse Oximeter | Blood Oxygen Saturation Monitor with Alarm & Plethysmograph and Perfusion Index | Finger SpO2 Meter - Newegg.com
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Racial disparity in clip-on devices to measure oxygen levels in blood under scrutiny by FDA | CBC News
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