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    Two executive shaking hands, X-ray. — Stock Photo
    Two executive shaking hands, X-ray.
    Beautiful woman using old camera dressed as an astronaut. — Stock Photo
    Beautiful woman using old camera dressed as an astronaut.
    Helicobacter pyloris bacteria — Stock Photo
    Helicobacter pyloris bacteria
    Girl experimenting molecule model at home — Stock Photo
    Girl experimenting molecule model at home
    Close-up of light microscope stage and lenses. — Stock Photo
    Close-up of light microscope stage and lenses.
    Pipette adding sample to petri dish with DNA autoradiogram in background. — Stock Photo
    Pipette adding sample to petri dish with DNA autoradiogram in background.
    Female anatomy with orange colored large intestine, digital illustration. — Stock Photo
    Female anatomy with orange colored large intestine, digital illustration.
    3d rendered illustration of biker spine on black background. — Stock Photo
    3d rendered illustration of biker spine on black background.
    Seedlings growing in laboratory amongst test tubes, conceptual image of plant research and genetic engineering. — Stock Photo
    Seedlings growing in laboratory amongst test tubes, conceptual image of plant research and genetic engineering.
    Bending male silhouette with knee pain, digital illustration. — Stock Photo
    Bending male silhouette with knee pain, digital illustration.
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph. — Stock Photo
    Miliary tuberculosis disease in lungs, digital illustration and light micrograph.
    Sperm cell fertilising an egg cell — Stock Photo
    Sperm cell fertilising an egg cell
    Close-up of a man's hand with a protective mask and a computer monitor. — Stock Photo
    Close-up of a man's hand with a protective mask and a computer monitor.
    Illustration of 4 cell stage egg on blue background. — Stock Photo
    Illustration of 4 cell stage egg on blue background.
    Low angle view illustration of blue silhouette of obese woman with highlighted bladder on black background. — Stock Photo
    Low angle view illustration of blue silhouette of obese woman with highlighted bladder on black background.
    Human skeleton with hip joint, computer illustration. — Stock Photo
    Human skeleton with hip joint, computer illustration.
    Technician checking stem cell cultures in bioengineering laboratory. — Stock Photo
    Technician checking stem cell cultures in bioengineering laboratory.
    Colorful fruits and vegetables in test tubes, studio shot. — Stock Photo
    Colorful fruits and vegetables in test tubes, studio shot.
    Hands of microbiologist taking sample from agar plate in laboratory. — Stock Photo
    Hands of microbiologist taking sample from agar plate in laboratory.
    Nudibranch feeding on algae — Stock Photo
    Nudibranch feeding on algae
    Illustration of transparent gray silhouette of male body with colored kidneys. — Stock Photo
    Illustration of transparent gray silhouette of male body with colored kidneys.
    Scientist pouring reagents with pipette to flasks while experiment — Stock Photo
    Scientist pouring reagents with pipette to flasks while experiment
    Male technician in safety goggles opening steaming cryostorage. — Stock Photo
    Male technician in safety goggles opening steaming cryostorage.
    Realistic human body model showing male anatomy with internal organs behind ribs, digital illustration. — Stock Photo
    Realistic human body model showing male anatomy with internal organs behind ribs, digital illustration.
    Stomach cancer in female body, conceptual computer illustration. — Stock Photo
    Stomach cancer in female body, conceptual computer illustration.
    Inflamed ligaments in human hand, conceptual computer illustration. — Stock Photo
    Inflamed ligaments in human hand, conceptual computer illustration.
    Male college student conducting scientific experiment using pipette in science laboratory classroom — Stock Photo
    Male college student conducting scientific experiment using pipette in science laboratory classroom
    Europe, Grece, Plain of Thessaly, Valley of Penee, World Heritage of UNESCO since 1988, Orthodox Christian monasteries of Meteora perched atop impressive gray rock masses sculpted by erosion, Monastery of Saint Trinity — Stock Photo
    Europe, Grece, Plain of Thessaly, Valley of Penee, World Heritage of UNESCO since 1988, Orthodox Christian monasteries of Meteora perched atop impressive gray rock masses sculpted by erosion, Monastery of Saint Trinity
    Abstract male figure showing colored thyroid gland, computer illustration. — Stock Photo
    Abstract male figure showing colored thyroid gland, computer illustration.
    Colored scanning electron micrograph of cancer cells from human colon. — Stock Photo
    Colored scanning electron micrograph of cancer cells from human colon.
    Digital illustration of parasitic Ancylostoma duodenale hookworms. — Stock Photo
    Digital illustration of parasitic Ancylostoma duodenale hookworms.
    Modern hand planer power tool, close-up. — Stock Photo
    Modern hand planer power tool, close-up.
    Illustration on black of silhouette of obese woman with highlighted brain. — Stock Photo
    Illustration on black of silhouette of obese woman with highlighted brain.
    Male silhouette with wrist pain, digital illustration. — Stock Photo
    Male silhouette with wrist pain, digital illustration.
    Male silhouette with back pain on black background, conceptual illustration. — Stock Photo
    Male silhouette with back pain on black background, conceptual illustration.
    Illustration of lungs in male body silhouette on white background. — Stock Photo
    Illustration of lungs in male body silhouette on white background.
    Visible skeleton in female body silhouette on black background, computer illustration. — Stock Photo
    Visible skeleton in female body silhouette on black background, computer illustration.
    Diseased adrenal glands in human body, conceptual digital illustration. — Stock Photo
    Diseased adrenal glands in human body, conceptual digital illustration.
    Plasmodium malariae protozoa in blood vessel, computer illustration. — Stock Photo
    Plasmodium malariae protozoa in blood vessel, computer illustration.
    Digital illustration of senior man anatomy showing ureters tumour. — Stock Photo
    Digital illustration of senior man anatomy showing ureters tumour.
    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.
    Running male silhouette with glowing nervous system, digital illustration. — Stock Photo
    Running male silhouette with glowing nervous system, digital illustration.
    Anatomy of human skeleton hand bones, computer illustration. — Stock Photo
    Anatomy of human skeleton hand bones, computer illustration.
    Midsection of archaeologist analyzing charred wood in petri dish. — Stock Photo
    Midsection of archaeologist analyzing charred wood in petri dish.
    Close-up of adenovirus infecting human lungs, digital illustration. — Stock Photo
    Close-up of adenovirus infecting human lungs, digital illustration.
    Mouldy smoked sausage and illustration of microscopic fungus Penicillium causing food spoilage and producing antibiotic penicillin. — Stock Photo
    Mouldy smoked sausage and illustration of microscopic fungus Penicillium causing food spoilage and producing antibiotic penicillin.
    Human silhouette showing heart with blood vessels and bronchial tree on white background. — Stock Photo
    Human silhouette showing heart with blood vessels and bronchial tree on white background.
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection. — Stock Photo
    Digital artwork of human cells with cytomegalic inclusion disease symptom of cytomegalovirus infection.
    Male body nervous system, computer illustration. — Stock Photo
    Male body nervous system, computer illustration.
    Teenage girl looking at a slide with a microscope — Stock Photo
    Teenage girl looking at a slide with a microscope
    Female scientist examining bacterial culture growing in petri dish. — Stock Photo
    Female scientist examining bacterial culture growing in petri dish.
    Curious students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Curious students watching chemical reaction, conducting scientific experiment in laboratory classroom
    Back view of woman wearing astronaut costume walking along countryside road — Stock Photo
    Back view of woman wearing astronaut costume walking along countryside road
    Female upper body musculature, computer illustration. — Stock Photo
    Female upper body musculature, computer illustration.
    Female anatomical figure with detailed uterus, computer illustration. — Stock Photo
    Female anatomical figure with detailed uterus, computer illustration.
    Technician working in sealed and sterile biomedical laboratory. — Stock Photo
    Technician working in sealed and sterile biomedical laboratory.
    Male body with glowing wrist pain, conceptual illustration. — Stock Photo
    Male body with glowing wrist pain, conceptual illustration.
    Laboratory technician analyzing blood bags in blood bank — Stock Photo
    Laboratory technician analyzing blood bags in blood bank
    Teenage girl experimenting chemical solution in laboratory — Stock Photo
    Teenage girl experimenting chemical solution in laboratory
    Metatarsal bone in transparent human body, computer illustration. — Stock Photo
    Metatarsal bone in transparent human body, computer illustration.