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    Mature man sneezing into handkerchief. — Stock Photo
    Mature man sneezing into handkerchief.
    Asian mature woman blowing nose. — Stock Photo
    Asian mature woman blowing nose.
    Chinese senior man consoling woman in hospital — Stock Photo
    Chinese senior man consoling woman in hospital
    Mid adult woman blowing nose with tissue. — Stock Photo
    Mid adult woman blowing nose with tissue.
    Human rib cage showing heart with vessels and bronchial tree on white background. — Stock Photo
    Human rib cage showing heart with vessels and bronchial tree on white background.
    Helianthus stem. Light micrograph (LM) of stem of perennial sunflower (Helianthus sp.) in cross-section showing vascular bundles (green, yellow). Vascular tissues transport water and dissolved substances inside plant — Stock Photo
    Helianthus stem. Light micrograph (LM) of stem of perennial sunflower (Helianthus sp.) in cross-section showing vascular bundles (green, yellow). Vascular tissues transport water and dissolved substances inside plant
    Epithelium from a fallopian tube — Stock Photo
    Epithelium from a fallopian tube
    Human lung tissue, light micrograph. Lungs are the primary organs of the respiratory system in humans and many other animals. Haematoxylin and eosin stain. — Stock Photo
    Human lung tissue, light micrograph. Lungs are the primary organs of the respiratory system in humans and many other animals. Haematoxylin and eosin stain.
    A Caucasian woman spending time at home, blowing her nose. Lifestyle at home isolating, social distancing in quarantine lockdown during coronavirus covid 19 pandemic. — Stock Photo
    A Caucasian woman spending time at home, blowing her nose. Lifestyle at home isolating, social distancing in quarantine lockdown during coronavirus covid 19 pandemic.
    Toasted cheese sandwiches and tomato soup — Stock Photo
    Toasted cheese sandwiches and tomato soup
    Surgical tools on table in operation room at hospital — Stock Photo
    Surgical tools on table in operation room at hospital
    Stomach lining. Coloured scanning electron micrograph (SEM) of the glandular lining (mucosa) of the stomach. The gastric mucosa secretes the digestive enzymes and hydrochloric acid — Stock Photo
    Stomach lining. Coloured scanning electron micrograph (SEM) of the glandular lining (mucosa) of the stomach. The gastric mucosa secretes the digestive enzymes and hydrochloric acid
    Different types of acne medical illustration — Stock Photo
    Different types of acne medical illustration
    Salad with crackers and grapes — Stock Photo
    Salad with crackers and grapes
    Male basketball player muscles while running with ball, computer illustration. — Stock Photo
    Male basketball player muscles while running with ball, computer illustration.
    Sick Caucasian woman spending time at home, social distancing and self isolation in quarantine lockdown, sitting on bed, holding tissue, coughing. — Stock Photo
    Sick Caucasian woman spending time at home, social distancing and self isolation in quarantine lockdown, sitting on bed, holding tissue, coughing.
    Close up view of teared blue jeans — Stock Photo
    Close up view of teared blue jeans
    Illustration of human heart anatomy on white background. — Stock Photo
    Illustration of human heart anatomy on white background.
    Blue colored nerve cell on white background, digital illustration. — Stock Photo
    Blue colored nerve cell on white background, digital illustration.
    Dressmakers mannequin in studio — Stock Photo
    Dressmakers mannequin in studio
    Female abdominal muscles and mammary glands, computer illustration — Stock Photo
    Female abdominal muscles and mammary glands, computer illustration
    Closeup view of cinnamon Danish pastry on plate — Stock Photo
    Closeup view of cinnamon Danish pastry on plate
    Alzheimer's disease. Illustration of amyloid plaques amongst neurons and neurofibrillary tangles inside neurons. Amyloid plaques are characteristic features of Alzheimer's disease — Stock Photo
    Alzheimer's disease. Illustration of amyloid plaques amongst neurons and neurofibrillary tangles inside neurons. Amyloid plaques are characteristic features of Alzheimer's disease
    Ruptured venule running through fatty tissue — Stock Photo
    Ruptured venule running through fatty tissue
    3d illustration of top view of skin-colored cell pattern. — Stock Photo
    3d illustration of top view of skin-colored cell pattern.
    Closeup view of person holding a breaded escalope in a bread roll — Stock Photo
    Closeup view of person holding a breaded escalope in a bread roll
    Genome sequencing machine — Stock Photo
    Genome sequencing machine
    Illustration of bone structure affected by osteoporosis. Thinning of the bone matrix is visible — Stock Photo
    Illustration of bone structure affected by osteoporosis. Thinning of the bone matrix is visible
    Duct lined with pseudostratified epithelium — Stock Photo
    Duct lined with pseudostratified epithelium
    Closeup view of sweet potato fritters with herbal dip — Stock Photo
    Closeup view of sweet potato fritters with herbal dip
    Lung cancer, digital illustration and light micrograph of cancerous tissue. — Stock Photo
    Lung cancer, digital illustration and light micrograph of cancerous tissue.
    Epithelium of a foliate papillae of the tongue — Stock Photo
    Epithelium of a foliate papillae of the tongue
    Woman looking for food in refrigerator in kitchen at home — Stock Photo
    Woman looking for food in refrigerator in kitchen at home
    Mature woman blowing nose on tissue. — Stock Photo
    Mature woman blowing nose on tissue.
    Broom stem. Light micrograph (LM) of transverse section through stem of common broom (Salicornia europaea) plant. Broom is drought plant (xerophyte) with ribbed stems and branches to increase area for photosynthesis — Stock Photo
    Broom stem. Light micrograph (LM) of transverse section through stem of common broom (Salicornia europaea) plant. Broom is drought plant (xerophyte) with ribbed stems and branches to increase area for photosynthesis
    Female skeleton with visible outer intercostal muscles, computer illustration. — Stock Photo
    Female skeleton with visible outer intercostal muscles, computer illustration.
    Male baseball player muscles while holding bat, computer illustration. — Stock Photo
    Male baseball player muscles while holding bat, computer illustration.
    Female body with visible outer intercostal muscles, computer illustration. — Stock Photo
    Female body with visible outer intercostal muscles, computer illustration.
    Cancer cell with filaments — Stock Photo
    Cancer cell with filaments
    Light micrograph of a section through breast tissue showing mastitis (inflammation) of breast. — Stock Photo
    Light micrograph of a section through breast tissue showing mastitis (inflammation) of breast.
    Sick Caucasian woman spending time at home, social distancing and self isolation in quarantine lockdown, lying in bed, holding tissue. — Stock Photo
    Sick Caucasian woman spending time at home, social distancing and self isolation in quarantine lockdown, lying in bed, holding tissue.
    Male head and neck muscles, computer illustration. — Stock Photo
    Male head and neck muscles, computer illustration.
    Neck and head muscles in female body, computer illustration — Stock Photo
    Neck and head muscles in female body, computer illustration
    Digital illustration of human bone anatomy. — Stock Photo
    Digital illustration of human bone anatomy.
    Human heart in cross-section with blood vessels on white background. — Stock Photo
    Human heart in cross-section with blood vessels on white background.
    Digital illustration and light micrograph of squamous cell carcinoma of lung. — Stock Photo
    Digital illustration and light micrograph of squamous cell carcinoma of lung.
    Methicillin-resistant Staphylococcus aureus — Stock Photo
    Methicillin-resistant Staphylococcus aureus
    Close-up of mince pies on kitchen table. — Stock Photo
    Close-up of mince pies on kitchen table.
    Confocal light micrograph of mammalian fibroblast cells. — Stock Photo
    Confocal light micrograph of mammalian fibroblast cells.
    Lactobacillus bulgaricus bacteria — Stock Photo
    Lactobacillus bulgaricus bacteria
    Illustration of bone structure affected by osteoporosis. Thinning of the bone matrix is visible — Stock Photo
    Illustration of bone structure affected by osteoporosis. Thinning of the bone matrix is visible
    Light micrograph of adipose tissue containing large lipid droplet. — Stock Photo
    Light micrograph of adipose tissue containing large lipid droplet.
    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 one red crab on tissue — Stock Photo
    Closeup view of one red crab on tissue
    Visual rendering of Cells — Stock Photo
    Visual rendering of Cells
    Fat cells, computer illustration — Stock Photo
    Fat cells, computer illustration
    Elementary age girl sneezing into tissue. — Stock Photo
    Elementary age girl sneezing into tissue.
    Human hair, coloured scanning electron micrograph (SEM). — Stock Photo
    Human hair, coloured scanning electron micrograph (SEM).
    Genome sequencing machine — Stock Photo
    Genome sequencing machine
    Coloured scanning electron micrograph of human cancellous spongy bone tissue. — Stock Photo
    Coloured scanning electron micrograph of human cancellous spongy bone tissue.