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Pulse oximetry: Understanding its basic principles facilitates appreciation of its limitations - ScienceDirect
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Sensors | Free Full-Text | A Comparison of Reflective Photoplethysmography for Detection of Heart Rate, Blood Oxygen Saturation, and Respiration Rate at Various Anatomical Locations
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The Effect of Venous Pulsation on the Forehead Pulse Oximeter Wave Form as a Possible Source of Error in Spo2 Calculation | Semantic Scholar
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