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    Doctor separating donor blood in blood bags into component parts. — Stock Photo
    Doctor separating donor blood in blood bags into component parts.
    Light micrograph of goblet cells in colon. — Stock Photo
    Light micrograph of goblet cells in colon.
    Donor blood in blood bags, close-up. — Stock Photo
    Donor blood in blood bags, close-up.
    Cell culture plate on white background. — Stock Photo
    Cell culture plate on white background.
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization. — Stock Photo
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization.
    Dopaminergic neuron brain cells, digital illustration. — Stock Photo
    Dopaminergic neuron brain cells, digital illustration.
    Close-up of cell culture plates on white background. — Stock Photo
    Close-up of cell culture plates on white background.
    Digital illustration of nerve neuron cell. — Stock Photo
    Digital illustration of nerve neuron cell.
    Cell culture plate on white background. — Stock Photo
    Cell culture plate on white background.
    Blood droplet containing cells, conceptual illustration of hemophilia. — Stock Photo
    Blood droplet containing cells, conceptual illustration of hemophilia.
    Close-up of cell culture plates on white background. — Stock Photo
    Close-up of cell culture plates on white background.
    From above smartphone on wooden table with laptop prohibition sign. — Stock Photo
    From above smartphone on wooden table with laptop prohibition sign.
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization. — Stock Photo
    Human egg cell surrounded by numerous spermatozoa, digital illustration of fertilization.
    Petri dishes with colorful liquids for microbiology research. — Stock Photo
    Petri dishes with colorful liquids for microbiology research.
    Petri dishes with colorful liquids for microbiology research. — Stock Photo
    Petri dishes with colorful liquids for microbiology research.
    Light micrograph of blood cells (mainly B cells, dark purple) in the liver of a patient with lymphocytic leukaemia. — Stock Photo
    Light micrograph of blood cells (mainly B cells, dark purple) in the liver of a patient with lymphocytic leukaemia.
    Light micrograph (bottom left) and computer illustration (top right) of the lining of the stomach, known as the mucosa. — Stock Photo
    Light micrograph (bottom left) and computer illustration (top right) of the lining of the stomach, known as the mucosa.
    Light micrograph of human red blood cells (erythrocytes), with two unidentified white blood cells (leucocytes) near the centre. — Stock Photo
    Light micrograph of human red blood cells (erythrocytes), with two unidentified white blood cells (leucocytes) near the centre.
    Computer Illustration of a fat cell structure — Stock Photo
    Computer Illustration of a fat cell structure
    Coloured scanning electron micrograph (SEM) of a human red blood cell (erythrocyte, red) and a white blood cell (leucoocyte, blue). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a human red blood cell (erythrocyte, red) and a white blood cell (leucoocyte, blue).
    Renal Corpuscle and the filtration membrane — Stock Photo
    Renal Corpuscle and the filtration membrane
    Relation of thyroid and pituitary gland — Stock Photo
    Relation of thyroid and pituitary gland
    Coloured scanning electron micrograph (SEM) of Schizosaccharomyces pombe yeast. — Stock Photo
    Coloured scanning electron micrograph (SEM) of Schizosaccharomyces pombe yeast.
    Early stage of kidney cancer with a tumor on the kidney — Stock Photo
    Early stage of kidney cancer with a tumor on the kidney
    Coloured transmission electron micrograph (TEM) of a transverse section through an artery. — Stock Photo
    Coloured transmission electron micrograph (TEM) of a transverse section through an artery.
    Medical illustration depicting the different stages of colon cancer — Stock Photo
    Medical illustration depicting the different stages of colon cancer
    Fat cell anatomy, computer illustration. — Stock Photo
    Fat cell anatomy, computer illustration.
    Portrait of brunette businessman holding smartphone in hand and looking away at downtown urban scene — Stock Photo
    Portrait of brunette businessman holding smartphone in hand and looking away at downtown urban scene
    Portrait of businessman in white shirt talking on smartphone over business building facade on backdrop — Stock Photo
    Portrait of businessman in white shirt talking on smartphone over business building facade on backdrop
    Renal Corpuscle and the filtration membrane — Stock Photo
    Renal Corpuscle and the filtration membrane
    Leucocyte cell capturing harmful bacteria, computer illustration. — Stock Photo
    Leucocyte cell capturing harmful bacteria, computer illustration.
    Portrait of smiling businessman in white shirt walking near business building and talking on smartphone — Stock Photo
    Portrait of smiling businessman in white shirt walking near business building and talking on smartphone
    Side view of businessman carrying laptop and using smartphone over business building facade on backdrop — Stock Photo
    Side view of businessman carrying laptop and using smartphone over business building facade on backdrop
    Low angle portrait of smiling businessman in white shirt talking on smartphone over business building facade at backdrop — Stock Photo
    Low angle portrait of smiling businessman in white shirt talking on smartphone over business building facade at backdrop
    Side view of smiling businessman in white shirt using smartphone near modern building facade — Stock Photo
    Side view of smiling businessman in white shirt using smartphone near modern building facade
    Side view of smiling businessman in white shirt using phone over business building facade at backdrop — Stock Photo
    Side view of smiling businessman in white shirt using phone over business building facade at backdrop
    Portrait of brunette businessman in white shirt talking on smartphone at downtown area — Stock Photo
    Portrait of brunette businessman in white shirt talking on smartphone at downtown area
    Portrait of confident businessman in white shirt holding smartphone and looking aside at urban scene — Stock Photo
    Portrait of confident businessman in white shirt holding smartphone and looking aside at urban scene
    Portrait of confident businessman in white shirt talking over smartphone and looking aside at urban scene — Stock Photo
    Portrait of confident businessman in white shirt talking over smartphone and looking aside at urban scene
    Light micrograph of a section through a nasal polyp, a benign growth that arises from a mucous membrane. — Stock Photo
    Light micrograph of a section through a nasal polyp, a benign growth that arises from a mucous membrane.
    Portrait of confident businessman in white shirt talking on smartphone at urban scene — Stock Photo
    Portrait of confident businessman in white shirt talking on smartphone at urban scene
    Leucocyte cell capturing harmful bacteria, computer illustration. — Stock Photo
    Leucocyte cell capturing harmful bacteria, computer illustration.
    Coloured scanning electron micrograph (SEM) of a human red blood cell (erythrocyte, red) and a white blood cell (leucoocyte, blue). — Stock Photo
    Coloured scanning electron micrograph (SEM) of a human red blood cell (erythrocyte, red) and a white blood cell (leucoocyte, blue).
    Midrib of a tea leaf — Stock Photo
    Midrib of a tea leaf
    Portrait of smiling businessman talking on smartphone at downtown urban scene — Stock Photo
    Portrait of smiling businessman talking on smartphone at downtown urban scene
    Portrait of confident businessman in white shirt holding smartphone and looking aside at urban scene — Stock Photo
    Portrait of confident businessman in white shirt holding smartphone and looking aside at urban scene
    Portrait of smiling businessman in talking on smartphone at downtown urban scene — Stock Photo
    Portrait of smiling businessman in talking on smartphone at downtown urban scene
    Portrait of confident businessman in white shirt holding smartphone and looking aside at urban scene — Stock Photo
    Portrait of confident businessman in white shirt holding smartphone and looking aside at urban scene
    Computer illustration showing different stages of release of malaria merozoites from a red blood cell. — Stock Photo
    Computer illustration showing different stages of release of malaria merozoites from a red blood cell.
    Portrait of smiling businessman in white shirt using phone over business building glass facade on background — Stock Photo
    Portrait of smiling businessman in white shirt using phone over business building glass facade on background
    Portrait of smiling businessman in white shirt looking at smartphone in hand at urban scene — Stock Photo
    Portrait of smiling businessman in white shirt looking at smartphone in hand at urban scene
    Portrait of brunette businessman in white shirt using smartphone at urban scene — Stock Photo
    Portrait of brunette businessman in white shirt using smartphone at urban scene
    Medical illustration of adrenal gland anatomy on white background — Stock Photo
    Medical illustration of adrenal gland anatomy on white background
    Coloured scanning electron micrograph (SEM) of human myeloid white blood cells found in bone marrow. — Stock Photo
    Coloured scanning electron micrograph (SEM) of human myeloid white blood cells found in bone marrow.
    Anatomy of human ear with membranous labyrinth — Stock Photo
    Anatomy of human ear with membranous labyrinth
    Glass fence reflecting brunette businessman in white shirt talking on smartphone at urban scene — Stock Photo
    Glass fence reflecting brunette businessman in white shirt talking on smartphone at urban scene
    Portrait of smiling businessman in white shirt standing on stairs passage and using smartphone over business building glass facade on background — Stock Photo
    Portrait of smiling businessman in white shirt standing on stairs passage and using smartphone over business building glass facade on background
    Section through the cerebellum of the brain — Stock Photo
    Section through the cerebellum of the brain
    Section through the cerebellum in the brain — Stock Photo
    Section through the cerebellum in the brain
    Midrib of a tea leaf — Stock Photo
    Midrib of a tea leaf