what does the color of phlegm mean ohio state medical center - phlegm ...
A still frame from a medical documentary, focusing on a patient's throat, with a grayish phlegm visible. The documentary-style image adds credibility, suitable for serious health reports.
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This asset is part of PHLEGM COLOR GRAY published by Printora Studio. Licensed under CC BY 4.0 — Free for personal use. Free to use with attribution.