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| Talcum powder, commonly used as a dusting powder to prevent chafing or heat rash, appears as a contaminant in urine as crystals. (Brightfield microscopy, 128X magnification.) |
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| Talcum powder, commonly used as a dusting powder to prevent chafing or heat rash, appears as a contaminant in urine as crystals. (Brightfield microscopy, 128X magnification.) |