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    Assortment of experimental drugs being tested in chemical laboratory. — Stock Photo
    Assortment of experimental drugs being tested in chemical laboratory.
    Medical samples in centrifuge. — Stock Photo
    Medical samples in centrifuge.
    Scientist holding syringe over variety of pharmaceutical vials. — Stock Photo
    Scientist holding syringe over variety of pharmaceutical vials.
    Vials of blood in laboratory centrifuge testing for coronavirus infection, conceptual digital illustration. — Stock Photo
    Vials of blood in laboratory centrifuge testing for coronavirus infection, conceptual digital illustration.
    Empty and sterile phials in red plastic box. — Stock Photo
    Empty and sterile phials in red plastic box.
    Female scientists in protective workwear examining specimen — Stock Photo
    Female scientists in protective workwear examining specimen
    Variety of potential drugs in petri dish on DNA autoradiogram. — Stock Photo
    Variety of potential drugs in petri dish on DNA autoradiogram.
    Scientist preparing samples in microcentrifuge tubes for chemical analysis. — Stock Photo
    Scientist preparing samples in microcentrifuge tubes for chemical analysis.