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Amazon.com: Pulse oximeter fingertip, Portable blood oxygen saturation monitor for heart rate and SpO2 level, O2 monitor finger for oxygen,Pulse Ox,Oxi Include carrying case,lanyard and batteries, Grey-White : Health & Household
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Decoding pulse oximeters: Does it provide an accurate reading? Here's what you need to know - The Economic Times
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Pulse Oximeters Can Give False Readings In COVID-19 Patients With Dark Skin : Shots - Health News : NPR
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