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    Digital illustration of budding Saccharomyces cerevisiae yeast cells. — Stock Photo
    Digital illustration of budding Saccharomyces cerevisiae yeast cells.
    Transparent female body with colored liver, computer illustration. — Stock Photo
    Transparent female body with colored liver, computer illustration.
    Illustration of sacrum in human skeleton. — Stock Photo
    Illustration of sacrum in human skeleton.
    Close-up of scientist hand holding test tube with fluorescent chemical fluid. — Stock Photo
    Close-up of scientist hand holding test tube with fluorescent chemical fluid.
    Digital illustration of Helicobacter pylori bacteria in human stomach. — Stock Photo
    Digital illustration of Helicobacter pylori bacteria in human stomach.
    Human sciatic nerves, computer illustration. — Stock Photo
    Human sciatic nerves, computer illustration.
    Attentive ethnic child with magnifying glass examining tree trunk while leaning forward during hike in woods — Stock Photo
    Attentive ethnic child with magnifying glass examining tree trunk while leaning forward during hike in woods
    Plasmodium vivax protozoa inside blood vessel, digital illustration. — Stock Photo
    Plasmodium vivax protozoa inside blood vessel, digital illustration.
    West Nile virus particles, digital illustration. — Stock Photo
    West Nile virus particles, digital illustration.
    Female silhouette with detailed liver on white background, computer illustration. — Stock Photo
    Female silhouette with detailed liver on white background, computer illustration.
    Pneumonia caused by Streptococcus pneumoniae bacteria, conceptual illustration. — Stock Photo
    Pneumonia caused by Streptococcus pneumoniae bacteria, conceptual illustration.
    Illustration of extrasolar planet orbiting fictional star. — Stock Photo
    Illustration of extrasolar planet orbiting fictional star.
    Illustration of adrenal glands in male body silhouette on white background. — Stock Photo
    Illustration of adrenal glands in male body silhouette on white background.
    Abstract animal cell on black background, digital illustration. — Stock Photo
    Abstract animal cell on black background, digital illustration.
    Close-up of gloved hand holding hypodermic syringe. — Stock Photo
    Close-up of gloved hand holding hypodermic syringe.
    Laboratory technician analyzing chemical solution in blood bank — Stock Photo
    Laboratory technician analyzing chemical solution in blood bank
    Plasmodium ovale protozoan parasite and red blood cell in flow, computer illustration. — Stock Photo
    Plasmodium ovale protozoan parasite and red blood cell in flow, computer illustration.
    Illustration of ankle in human skeleton on blue background. — Stock Photo
    Illustration of ankle in human skeleton on blue background.
    Close-up of hands of microbiologist inoculating nutritive agar. — Stock Photo
    Close-up of hands of microbiologist inoculating nutritive agar.
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus. — Stock Photo
    Illustration of fruiting bodies and hyphae of fungus Aspergillus fumigatus.
    Scientist examining cultured cells under microscope. — Stock Photo
    Scientist examining cultured cells under microscope.
    Portrait smiling college student with digital tablet in science laboratory classroom — Stock Photo
    Portrait smiling college student with digital tablet in science laboratory classroom
    Hard coral polyps — Stock Photo
    Hard coral polyps
    Blue orthomyxovirus particle on background, illustration. — Stock Photo
    Blue orthomyxovirus particle on background, illustration.
    Plasmodium vivax protozoa and red blood cells, digital illustration. — Stock Photo
    Plasmodium vivax protozoa and red blood cells, digital illustration.
    Fungal infection of upper skin layer, digital illustration. — Stock Photo
    Fungal infection of upper skin layer, digital illustration.
    Grey alien head on black background, digital illustration. — Stock Photo
    Grey alien head on black background, digital illustration.
    Abstract male silhouette with visible human skull, side view, computer illustration. — Stock Photo
    Abstract male silhouette with visible human skull, side view, computer illustration.
    Girl students using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl students using microscope, conducting scientific experiment in laboratory classroom
    Crop female medical specialist in latex gloves performing injection with syringe to anonymous patient during procedure of blood transfusion in hospital — Stock Photo
    Crop female medical specialist in latex gloves performing injection with syringe to anonymous patient during procedure of blood transfusion in hospital
    Visible skeleton in female body silhouette on black background, computer illustration. — Stock Photo
    Visible skeleton in female body silhouette on black background, computer illustration.
    Scientist researching sample in petri dish under light microscope. — Stock Photo
    Scientist researching sample in petri dish under light microscope.
    Illustration of silhouette of obese man with visible larynx. — Stock Photo
    Illustration of silhouette of obese man with visible larynx.
    Illustration of cervical spine in human skeleton on white background. — Stock Photo
    Illustration of cervical spine in human skeleton on white background.
    Illustration of bladder in silhouette of female body. — Stock Photo
    Illustration of bladder in silhouette of female body.
    Satellite dish on the roof of a building, Boston, Massachusetts, USA — Stock Photo
    Satellite dish on the roof of a building, Boston, Massachusetts, USA
    Male anatomy showing Flexordigitorum longus muscle, computer illustration. — Stock Photo
    Male anatomy showing Flexordigitorum longus muscle, computer illustration.
    Transparent male silhouette with colored spleen, computer illustration. — Stock Photo
    Transparent male silhouette with colored spleen, computer illustration.
    Female body model with detailed Obturator externus muscle, digital illustration. — Stock Photo
    Female body model with detailed Obturator externus muscle, digital illustration.
    Illustration of ureters in male body silhouette on white background. — Stock Photo
    Illustration of ureters in male body silhouette on white background.
    Female abstract body with glowing breast cancer, conceptual computer illustration. — Stock Photo
    Female abstract body with glowing breast cancer, conceptual computer illustration.
    Full body male astronaut in spacesuit browsing data on netbook while sitting on rock outside station with rocket shaped antennas — Stock Photo
    Full body male astronaut in spacesuit browsing data on netbook while sitting on rock outside station with rocket shaped antennas
    Medical illustration of intestinal villi in human intestine. — Stock Photo
    Medical illustration of intestinal villi in human intestine.
    Archaeology researcher in laboratory demonstrating antler use as tool in prehistory. — Stock Photo
    Archaeology researcher in laboratory demonstrating antler use as tool in prehistory.
    Human lungs with viral pneumonia and close-up of virions. — Stock Photo
    Human lungs with viral pneumonia and close-up of virions.
    Digital illustration of trypanosomes in red blood cells in blood causing sleeping sickness. — Stock Photo
    Digital illustration of trypanosomes in red blood cells in blood causing sleeping sickness.
    Digital illustration of human hair with dandruff. — Stock Photo
    Digital illustration of human hair with dandruff.
    Male patient having eye examination in clinic — Stock Photo
    Male patient having eye examination in clinic
    Male silhouette with back pain in high angle view, conceptual illustration. — Stock Photo
    Male silhouette with back pain in high angle view, conceptual illustration.
    Man operating a flying drone in countryside — Stock Photo
    Man operating a flying drone in countryside
    Female silhouette showing breast anatomy, computer illustration. — Stock Photo
    Female silhouette showing breast anatomy, computer illustration.
    Abstract male silhouette with visible lumbar spine, computer illustration. — Stock Photo
    Abstract male silhouette with visible lumbar spine, computer illustration.
    Nervous system with brain and nerves in abstract female body, computer illustration — Stock Photo
    Nervous system with brain and nerves in abstract female body, computer illustration
    Researcher loading sample of DNA into agarose gel for separation by electrophoresis. — Stock Photo
    Researcher loading sample of DNA into agarose gel for separation by electrophoresis.
    3d illustration of unborn foetus in low polygon style consisting of lines and strokes on colored background. — Stock Photo
    3d illustration of unborn foetus in low polygon style consisting of lines and strokes on colored background.
    Female body silhouette with visible skeleton, digital illustration. — Stock Photo
    Female body silhouette with visible skeleton, digital illustration.
    Planet Earth with sunrise in space, cities lights and moon, USA. and South America view. — Stock Photo
    Planet Earth with sunrise in space, cities lights and moon, USA. and South America view.
    Digital illustration of senior man anatomy showing stomach tumour. — Stock Photo
    Digital illustration of senior man anatomy showing stomach tumour.
    Plasmodium malariae protozoan parasite, digital illustration. — Stock Photo
    Plasmodium malariae protozoan parasite, digital illustration.
    Illustration of bronchi in male body silhouette on white background. — Stock Photo
    Illustration of bronchi in male body silhouette on white background.