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    Thyroid gland showing the follicles — Stock Photo
    Thyroid gland showing the follicles
    Human skeleton with red colored Nasalis transverse muscle, digital illustration. — Stock Photo
    Human skeleton with red colored Nasalis transverse muscle, digital illustration.
    Colon cancer in female body, conceptual computer illustration. — Stock Photo
    Colon cancer in female body, conceptual computer illustration.
    Frontal illustration of blue silhouette of obese woman with highlighted colon on black background. — Stock Photo
    Frontal illustration of blue silhouette of obese woman with highlighted colon on black background.
    Colored large intestine in female body silhouette, digital illustration. — Stock Photo
    Colored large intestine in female body silhouette, digital illustration.
    Colon cancer in male body, conceptual computer illustration. — Stock Photo
    Colon cancer in male body, conceptual computer illustration.
    Illustration of female silhouette with highlighted colon. — Stock Photo
    Illustration of female silhouette with highlighted colon.
    Colored large intestine in female body silhouette, digital illustration. — Stock Photo
    Colored large intestine in female body silhouette, digital illustration.
    Large intestine, computer illustration — Stock Photo
    Large intestine, computer illustration
    Colored large intestine in female body silhouette, digital illustration. — Stock Photo
    Colored large intestine in female body silhouette, digital illustration.
    Illustration of senior woman silhouette with colored colon on white background. — Stock Photo
    Illustration of senior woman silhouette with colored colon on white background.
    Cardiac muscle from a healthy heart — Stock Photo
    Cardiac muscle from a healthy heart
    Illustration of female silhouette with highlighted rectum cancer. — Stock Photo
    Illustration of female silhouette with highlighted rectum cancer.
    Lily stem. Light micrograph(LM) of section through part of lily (Lilium) stem. Thin outer epidermis surrounds layer of cortex. At center is pith, which contains numerous vascular bundles (yellow) — Stock Photo
    Lily stem. Light micrograph(LM) of section through part of lily (Lilium) stem. Thin outer epidermis surrounds layer of cortex. At center is pith, which contains numerous vascular bundles (yellow)
    Normal human brain — Stock Photo
    Normal human brain
    Male anatomy showing Nasalis transverse muscle, computer illustration. — Stock Photo
    Male anatomy showing Nasalis transverse muscle, computer illustration.
    Illustration of female silhouette with shown anatomy. — Stock Photo
    Illustration of female silhouette with shown anatomy.
    Digital illustration of colon in senior man body. — Stock Photo
    Digital illustration of colon in senior man body.
    Colon cancer in female body, conceptual computer illustration. — Stock Photo
    Colon cancer in female body, conceptual computer illustration.
    Illustration of colon in male body silhouette on white background. — Stock Photo
    Illustration of colon in male body silhouette on white background.
    Female anatomy with orange colored large intestine, digital illustration. — Stock Photo
    Female anatomy with orange colored large intestine, digital illustration.
    Villi of the intestine — Stock Photo
    Villi of the intestine
    Antibodies attacking neurons. Conceptual computer illustration of autoimmune neurologic diseases — Stock Photo
    Antibodies attacking neurons. Conceptual computer illustration of autoimmune neurologic diseases
    Anatomy of human abdominal muscles — Stock Photo
    Anatomy of human abdominal muscles
    Anatomy of human abdominal vein system — Stock Photo
    Anatomy of human abdominal vein system
    Thyroid gland showing the follicles — Stock Photo
    Thyroid gland showing the follicles
    Bowel cancer in female body, conceptual computer illustration. — Stock Photo
    Bowel cancer in female body, conceptual computer illustration.
    Illustration of blue silhouette of obese woman with highlighted colon on black background. — Stock Photo
    Illustration of blue silhouette of obese woman with highlighted colon on black background.
    Antibodies attacking neurons. Conceptual computer illustration of autoimmune neurologic diseases — Stock Photo
    Antibodies attacking neurons. Conceptual computer illustration of autoimmune neurologic diseases
    Illustration of colon in male body silhouette. — Stock Photo
    Illustration of colon in male body silhouette.
    Hair follicles of human skin — Stock Photo
    Hair follicles of human skin
    Female anatomy with orange colored large intestine, digital illustration. — Stock Photo
    Female anatomy with orange colored large intestine, digital illustration.
    Lily stem. Light micrograph(LM) of section through part of lily (Lilium) stem. Thin outer epidermis surrounds layer of cortex. At center is pith, which contains numerous vascular bundles (yellow) — Stock Photo
    Lily stem. Light micrograph(LM) of section through part of lily (Lilium) stem. Thin outer epidermis surrounds layer of cortex. At center is pith, which contains numerous vascular bundles (yellow)
    Illustration of female silhouette with highlighted colon cancer. — Stock Photo
    Illustration of female silhouette with highlighted colon cancer.
    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.
    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.
    Antibodies attacking neurons. Conceptual computer illustration of autoimmune neurologic diseases — Stock Photo
    Antibodies attacking neurons. Conceptual computer illustration of autoimmune neurologic diseases
    Large intestine, computer illustration — Stock Photo
    Large intestine, computer illustration
    Male anatomy with orange colored large intestine, digital illustration. — Stock Photo
    Male anatomy with orange colored large intestine, digital illustration.
    Midsection view showing internal organs of human body — Stock Photo
    Midsection view showing internal organs of human body
    Male anatomy with orange colored large intestine, digital illustration. — Stock Photo
    Male anatomy with orange colored large intestine, digital illustration.
    Digital illustration of colon in senior man body. — Stock Photo
    Digital illustration of colon in senior man body.
    Illustration of silhouette of obese man with visible colon. — Stock Photo
    Illustration of silhouette of obese man with visible colon.
    Anatomy of normal large intestine — Stock Photo
    Anatomy of normal large intestine
    Human Colon, computer illustration — Stock Photo
    Human Colon, computer illustration
    Section through the cerebellum in the brain — Stock Photo
    Section through the cerebellum in the brain
    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
    Tendon showing the parallel collagen fibres — Stock Photo
    Tendon showing the parallel collagen fibres
    Illustration of colon in male body silhouette on black background. — Stock Photo
    Illustration of colon in male body silhouette on black background.
    Transverse section through a leaf showing foveate stomata (light areas on underside of leaf. — Stock Photo
    Transverse section through a leaf showing foveate stomata (light areas on underside of leaf.
    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
    Mid section illustration of colon in male body silhouette. — Stock Photo
    Mid section illustration of colon in male body silhouette.
    Male anatomy showing Nasalis transverse muscle, computer illustration. — Stock Photo
    Male anatomy showing Nasalis transverse muscle, computer illustration.
    Illustration of blue silhouette of obese woman with highlighted colon on white background. — Stock Photo
    Illustration of blue silhouette of obese woman with highlighted colon on white background.
    Illustration of digestive system in transparent male silhouette. — Stock Photo
    Illustration of digestive system in transparent male silhouette.
    Medical illustration of human digestive system with labels — Stock Photo
    Medical illustration of human digestive system with labels
    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
    Illustration of senior woman with colon tumour on black background. — Stock Photo
    Illustration of senior woman with colon tumour on black background.
    Illustration of senior woman silhouette with colored colon on black background. — Stock Photo
    Illustration of senior woman silhouette with colored colon on black background.
    Transparent human body showing heart and main circulatory system with internal organs, nervous, lymphatic and circulatory systems — Stock Photo
    Transparent human body showing heart and main circulatory system with internal organs, nervous, lymphatic and circulatory systems