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Results 1 - 2 of 2 for Colorless
  1. Bedbug - close-up (image) 
    Bed bugs bites can leave a colorless welt along with an itching or burning sensation. (Image courtesy of the Centers for Disease Control and Prevention.)
    https://medlineplus.gov/ency/imagepages/1234.htm - Medical Encyclopedia
  2. Nitroblue tetrazolium test (image) 
    ... ability of the immune system to convert the colorless nitroblue tetrazolium (NBT) to a deep blue. This ...
    https://medlineplus.gov/ency/imagepages/9697.htm - Medical Encyclopedia