Text sign showing Purified Protein Derivative. Conceptual photo the extract of Mycobacterium tuberculosis Color Pages of Open Book photo on Table with

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Text sign showing Purified Protein Derivative. Conceptual photo the extract of Mycobacterium tuberculosis Color Pages of Open Book photo on Table with Pen and Light Beam Glaring

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Size: 7000px × 4667px
Photo credit: © Artur Szczybylo / Alamy / Afripics
License: Royalty Free
Model Released: No

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