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Amazon.com: Pulse Oximeter Fingertip, Digital Blood Oxygen Saturation Monitor for Heart Rate Monitor and SpO2 Levels, Portable LCD Pulse Oximeter (Batteries Included) : Health & Household
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Pulse Oximeters and Coronavirus: Devices Have Higher Error Rate in Black Patients - The New York Times
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British Journal of Nursing - Placement of finger oximeter on the ear: comparison with oxygen saturation values taken from the finger
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Amazon.com: Easy@Home Fingertip Pulse Oximeter, Rotatable OLED Display to Show Waveform, SpO2 Blood Oxygen Saturation, Bar Graphs and Heart Rate Monitor, Co-branding-CMS50DA : Health & Household
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