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    Mature man sneezing into handkerchief. — Stock Photo
    Mature man sneezing into handkerchief.
    Colored scanning electron micrograph of human mesenchymal stem cell. — Stock Photo
    Colored scanning electron micrograph of human mesenchymal stem cell.
    Fibrosarcoma cells in late stage of mitosis — Stock Photo
    Fibrosarcoma cells in late stage of mitosis
    Light micrograph of a section of stomach tissue showing a lesion (centre) caused by a gastric ulcer. — Stock Photo
    Light micrograph of a section of stomach tissue showing a lesion (centre) caused by a gastric ulcer.
    Duct lined with pseudostratified epithelium — Stock Photo
    Duct lined with pseudostratified epithelium
    Plantar skin, light micrograph (LM) of sectioned foot sole skin. The skin on the soles of the feet is referred to as plantar skin as the outer layer of keratin (stratum corneum) (top) is much thicker here than in the rest of the body — Stock Photo
    Plantar skin, light micrograph (LM) of sectioned foot sole skin. The skin on the soles of the feet is referred to as plantar skin as the outer layer of keratin (stratum corneum) (top) is much thicker here than in the rest of the body
    Dentist putting on surgical gloves while patient lying in chair — Stock Photo
    Dentist putting on surgical gloves while patient lying in chair
    Nerve cell structure in cross section on black background, digital illustration. — Stock Photo
    Nerve cell structure in cross section on black background, digital illustration.
    View of Triceps muscle — Stock Photo
    View of Triceps muscle
    View of Deltoid muscle — Stock Photo
    View of Deltoid muscle
    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Close-up of paper towel roll swirl. — Stock Photo
    Close-up of paper towel roll swirl.
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Tissue culture labelled wells with pink fluid and gel nourishes. — Stock Photo
    Tissue culture labelled wells with pink fluid and gel nourishes.
    Mature man sneezing into handkerchief. — Stock Photo
    Mature man sneezing into handkerchief.
    Salmonella sp. bacteria on tissue surface — Stock Photo
    Salmonella sp. bacteria on tissue surface
    Closeup cropped view of woman holding marzipan fruits on stand — Stock Photo
    Closeup cropped view of woman holding marzipan fruits on stand
    3d illustration of brain cancer cell connecting to tissue. — Stock Photo
    3d illustration of brain cancer cell connecting to tissue.
    Woman spending time at home, in the kitchen, working from home, using her laptop, cleaning her phone. Social distancing during Covid 19 Coronavirus quarantine lockdown. — Stock Photo
    Woman spending time at home, in the kitchen, working from home, using her laptop, cleaning her phone. Social distancing during Covid 19 Coronavirus quarantine lockdown.
    Tomato and cheese pizza — Stock Photo
    Tomato and cheese pizza
    Ruptured venule running through fatty tissue — Stock Photo
    Ruptured venule running through fatty tissue
    Digital illustration of gross anatomy of kidneys with chronic glomerulonephritis. — Stock Photo
    Digital illustration of gross anatomy of kidneys with chronic glomerulonephritis.
    Closeup view of chocolate cream in cup — Stock Photo
    Closeup view of chocolate cream in cup
    Slice of pepperoni pizza — Stock Photo
    Slice of pepperoni pizza
    Illustration of human heart anatomy on blue background. — Stock Photo
    Illustration of human heart anatomy on blue background.
    Little boy blowing nose in hospital on check up — Stock Photo
    Little boy blowing nose in hospital on check up
    Cancer invasion into surrounding tissues, conceptual computer illustration. — Stock Photo
    Cancer invasion into surrounding tissues, conceptual computer illustration.
    Elm stem. Light micrograph (LM) of cross-section through woody stem of elm (Ulmus procera) tree. — Stock Photo
    Elm stem. Light micrograph (LM) of cross-section through woody stem of elm (Ulmus procera) tree.
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink). — Stock Photo
    Light micrograph (LM) of the nasal sinuses ( lined by brown epithelium ) and the supporting cartilages (pink).
    Female skeleton with visible outer intercostal muscles, computer illustration. — Stock Photo
    Female skeleton with visible outer intercostal muscles, computer illustration.
    Salivary gland. Light micrograph (LM) of a sectioned gland. The submandibular glands (also called sublingual) are bilateral salivary glands located in the face — Stock Photo
    Salivary gland. Light micrograph (LM) of a sectioned gland. The submandibular glands (also called sublingual) are bilateral salivary glands located in the face
    Closeup view of chocolate-coated nut triangles — Stock Photo
    Closeup view of chocolate-coated nut triangles
    Rhomboid muscles in human back bones, computer illustration. — Stock Photo
    Rhomboid muscles in human back bones, computer illustration.
    Nerve cell with pink colored axon on blue background, digital illustration. — Stock Photo
    Nerve cell with pink colored axon on blue background, digital illustration.
    Male physical therapist massaging leg of anonymous woman in clinic — Stock Photo
    Male physical therapist massaging leg of anonymous woman in clinic
    Stratified cuboidal epithelium, digital illustration. — Stock Photo
    Stratified cuboidal epithelium, digital illustration.
    Chinese senior man consoling woman in hospital — Stock Photo
    Chinese senior man consoling woman in hospital
    Lung bronchiole. Light micrograph of a section through lung tissue and a bronchiole. Bronchi form branches from the trachea and gradually diminish in diameter with increasing branching into bronchioles within the lung — Stock Photo
    Lung bronchiole. Light micrograph of a section through lung tissue and a bronchiole. Bronchi form branches from the trachea and gradually diminish in diameter with increasing branching into bronchioles within the lung
    Fresh beefsteak tomatoes — Stock Photo
    Fresh beefsteak tomatoes
    Closeup view of French blinis heap on white plate — Stock Photo
    Closeup view of French blinis heap on white plate
    Light microscope of a spleen. The spleen is the largest mass of lymphatic tissue in the body. Haematoxylin and eosin stain. — Stock Photo
    Light microscope of a spleen. The spleen is the largest mass of lymphatic tissue in the body. Haematoxylin and eosin stain.
    Female skeleton with visible outer intercostal muscles, computer illustration. — Stock Photo
    Female skeleton with visible outer intercostal muscles, computer illustration.
    Visual render of Human skin anatomy — Stock Photo
    Visual render of Human skin anatomy
    Little boy blowing nose in hospital on check up — Stock Photo
    Little boy blowing nose in hospital on check up
    Secondary brain cancer — Stock Photo
    Secondary brain cancer
    Genome sequencing machine — Stock Photo
    Genome sequencing machine
    Light micrograph (LM) of a section through sunflower(helianthus annuus) tissue showing spiral tracheids, a type of xylem. — Stock Photo
    Light micrograph (LM) of a section through sunflower(helianthus annuus) tissue showing spiral tracheids, a type of xylem.
    Light micrograph (LM) of a vertical section through the pseudostratified columnar epithelium from the trachea, the tube in the throat leading from the mouth to the bronchus and the lungs. — Stock Photo
    Light micrograph (LM) of a vertical section through the pseudostratified columnar epithelium from the trachea, the tube in the throat leading from the mouth to the bronchus and the lungs.
    Human vein showing tissue stratification — Stock Photo
    Human vein showing tissue stratification
    View of Heart anatomy — Stock Photo
    View of Heart anatomy
    Pyoderma skin disease — Stock Photo
    Pyoderma skin disease
    Asparagus and herbs on pink tissue paper — Stock Photo
    Asparagus and herbs on pink tissue paper
    Kidney glomerulus and podocyte cells — Stock Photo
    Kidney glomerulus and podocyte cells
    Asian mature woman blowing nose. — Stock Photo
    Asian mature woman blowing nose.
    Colored scanning electron micrograph of human mesenchymal stem cell. — Stock Photo
    Colored scanning electron micrograph of human mesenchymal stem cell.
    Purple colored nerve cell on dark background, digital illustration. — Stock Photo
    Purple colored nerve cell on dark background, digital illustration.
    Still life of shabby blue jeans pants on dark table. — Stock Photo
    Still life of shabby blue jeans pants on dark table.
    Pseudostratified columnar epithelium, digital illustration. — Stock Photo
    Pseudostratified columnar epithelium, digital illustration.
    Nerve cell with pink colored axon on blue background, digital illustration. — Stock Photo
    Nerve cell with pink colored axon on blue background, digital illustration.
    Tendon showing the parallel collagen fibres — Stock Photo
    Tendon showing the parallel collagen fibres