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    T-cell receptor-MHC-antigen complex — Stock Photo
    T-cell receptor-MHC-antigen complex
    Lymphocyte white blood cell — Stock Photo
    Lymphocyte white blood cell
    Karate fighter practicing martial arts in fitness studio. — Stock Photo
    Karate fighter practicing martial arts in fitness studio.
    Illustration on black of silhouette of obese woman with highlighted spleen. — Stock Photo
    Illustration on black of silhouette of obese woman with highlighted spleen.
    Karate player performing karate stance in fitness studio — Stock Photo
    Karate player performing karate stance in fitness studio
    Side view of a mixed race male judo coach and teenage mixed race male judoka wearing blue and white judogi, practicing judo during a training in a gym. — Stock Photo
    Side view of a mixed race male judo coach and teenage mixed race male judoka wearing blue and white judogi, practicing judo during a training in a gym.
    Kung fu fighter practicing with long pole in fitness studio. — Stock Photo
    Kung fu fighter practicing with long pole in fitness studio.
    Illustration of transparent blue silhouette of male body with colored spleen. — Stock Photo
    Illustration of transparent blue silhouette of male body with colored spleen.
    Mid section of boxer performing boxing stance in fitness studio — Stock Photo
    Mid section of boxer performing boxing stance in fitness studio
    Karate fighter practicing with long pole in fitness studio. — Stock Photo
    Karate fighter practicing with long pole in fitness studio.
    Illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Illustration of cancer cell being attacked by white blood cells.
    Low angle view illustration of blue silhouette of obese woman with highlighted spleen on black background. — Stock Photo
    Low angle view illustration of blue silhouette of obese woman with highlighted spleen on black background.
    3d illustration of antibodies attacking virus particles. — Stock Photo
    3d illustration of antibodies attacking virus particles.
    Rear view of a teenage mixed race female judoka wearing blue judogi, practicing with a judo jo stick during a training with a coach in a gym. — Stock Photo
    Rear view of a teenage mixed race female judoka wearing blue judogi, practicing with a judo jo stick during a training with a coach in a gym.
    Illustration of blue silhouette of obese woman with highlighted spleen on black background. — Stock Photo
    Illustration of blue silhouette of obese woman with highlighted spleen on black background.
    Front view mid section of judoka standing on gym mats, tying up the yellow belt of blue judogi. — Stock Photo
    Front view mid section of judoka standing on gym mats, tying up the yellow belt of blue judogi.
    Blue senior female silhouette showing spleen in body. — Stock Photo
    Blue senior female silhouette showing spleen in body.
    Female boxer practicing with trainer at fitness studio — Stock Photo
    Female boxer practicing with trainer at fitness studio
    Karate player performing karate stance in fitness studio — Stock Photo
    Karate player performing karate stance in fitness studio
    Antibody molecular structure — Stock Photo
    Antibody molecular structure
    Blue senior female silhouette showing spleen in body. — Stock Photo
    Blue senior female silhouette showing spleen in body.
    Close-up of a macrophage, illustration. — Stock Photo
    Close-up of a macrophage, illustration.
    Illustration of human silhouette with inflamed spleen. — Stock Photo
    Illustration of human silhouette with inflamed spleen.
    Structure of dog lymphatic system with lymph vessels, digital illustration. — Stock Photo
    Structure of dog lymphatic system with lymph vessels, digital illustration.
    High angle close up view of a wooden judo jo stick lying on red gym mats in sports hall during judo training. — Stock Photo
    High angle close up view of a wooden judo jo stick lying on red gym mats in sports hall during judo training.
    Kung fu fighter practicing martial arts in fitness studio. — Stock Photo
    Kung fu fighter practicing martial arts in fitness studio.
    Colored scanning electron micrograph of protective dendritic cell of immune system. — Stock Photo
    Colored scanning electron micrograph of protective dendritic cell of immune system.
    Illustration of silhouette of obese man with visible spleen. — Stock Photo
    Illustration of silhouette of obese man with visible spleen.
    Dendritic cells of immune system — Stock Photo
    Dendritic cells of immune system
    Glowing spleen in female body, digital illustration. — Stock Photo
    Glowing spleen in female body, digital illustration.
    Close-up of millipede in defensive spiral position on wild plant. — Stock Photo
    Close-up of millipede in defensive spiral position on wild plant.
    Front view of a confident teenage mixed race female judoka wearing blue judogi, kneeling on mats in the gym, looking straight into a camera, before judo training. — Stock Photo
    Front view of a confident teenage mixed race female judoka wearing blue judogi, kneeling on mats in the gym, looking straight into a camera, before judo training.
    Portrait of boxer wearing boxing headgear in fitness studio — Stock Photo
    Portrait of boxer wearing boxing headgear in fitness studio
    Confident female boxer leaning on boxing ring in fitness studio — Stock Photo
    Confident female boxer leaning on boxing ring in fitness studio
    Digital illustration of senior man anatomy showing spleen tumour. — Stock Photo
    Digital illustration of senior man anatomy showing spleen tumour.
    Portrait of karate player performing karate stance in fitness studio — Stock Photo
    Portrait of karate player performing karate stance in fitness studio
    Transparent female body silhouette with purple colored spleen, digital illustration. — Stock Photo
    Transparent female body silhouette with purple colored spleen, digital illustration.
    Kung fu fighter practicing with long pole in fitness studio. — Stock Photo
    Kung fu fighter practicing with long pole in fitness studio.
    Side view of a mixed race male judo coach and teenage mixed race male judoka, wearing blue and white judogi, practicing judo during a training in a gym. — Stock Photo
    Side view of a mixed race male judo coach and teenage mixed race male judoka, wearing blue and white judogi, practicing judo during a training in a gym.
    Confident female boxer performing boxing stance in fitness studio — Stock Photo
    Confident female boxer performing boxing stance in fitness studio
    Man in defensive pose, computer illustration — Stock Photo
    Man in defensive pose, computer illustration
    Illustration of spleen in male body silhouette on white background. — Stock Photo
    Illustration of spleen in male body silhouette on white background.
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is red. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (black) contain enzymes for digesting foreign particles. — Stock Photo
    Macrophage. Coloured transmission electron micrograph (TEM) of a macrophage cell. The cell's nucleus is red. Mitochondria (orange) in the cell's cytoplasm produce energy for the cell. Lysosomes (black) contain enzymes for digesting foreign particles.
    High angle front view of a focused teenage mixed race female judoka wearing blue judogi, kneeling on mats in the gym before judo training. — Stock Photo
    High angle front view of a focused teenage mixed race female judoka wearing blue judogi, kneeling on mats in the gym before judo training.
    Gun and skeleton, X-ray. — Stock Photo
    Gun and skeleton, X-ray.
    Front view close up of a mixed race male judo coach and teenage mixed race male judoka wearing blue and white judogi, practicing judo during a training in a gym. — Stock Photo
    Front view close up of a mixed race male judo coach and teenage mixed race male judoka wearing blue and white judogi, practicing judo during a training in a gym.
    White blood cell structure — Stock Photo
    White blood cell structure
    Mid section of karate player performing karate stance in fitness studio — Stock Photo
    Mid section of karate player performing karate stance in fitness studio
    Front view of a teenage mixed-race male judo player wearing white judogi, warming up before a training in a gym, striking a pose, stretching his leg up and kicking the air. — Stock Photo
    Front view of a teenage mixed-race male judo player wearing white judogi, warming up before a training in a gym, striking a pose, stretching his leg up and kicking the air.
    Mid section of female boxer wearing red strap on wrist in fitness studio — Stock Photo
    Mid section of female boxer wearing red strap on wrist in fitness studio
    Judoka doing push ups on gym mats — Stock Photo
    Judoka doing push ups on gym mats
    Abstract male silhouette with colored spleen, computer illustration. — Stock Photo
    Abstract male silhouette with colored spleen, computer illustration.
    Front view close up of a focused teenage mixed-race male judoka wearing white judogi, warming up before a training in a gym, striking a pose, punching the air. — Stock Photo
    Front view close up of a focused teenage mixed-race male judoka wearing white judogi, warming up before a training in a gym, striking a pose, punching the air.
    Structure of dog lymphatic system with lymph vessels, digital illustration. — Stock Photo
    Structure of dog lymphatic system with lymph vessels, digital illustration.
    Portrait of boxer performing boxing stance in fitness studio — Stock Photo
    Portrait of boxer performing boxing stance in fitness studio
    Front view mid section of female judoka, sitting on gym mats, wrapping red tape around her wrist. — Stock Photo
    Front view mid section of female judoka, sitting on gym mats, wrapping red tape around her wrist.
    B-lymphocyte white blood cells — Stock Photo
    B-lymphocyte white blood cells
    Female boxer practicing with trainer at fitness studio — Stock Photo
    Female boxer practicing with trainer at fitness studio
    Front view mid section of judoka standing on gym mats, tying up the black belt of white judogi. — Stock Photo
    Front view mid section of judoka standing on gym mats, tying up the black belt of white judogi.
    Karate fighter training martial arts in fitness studio. — Stock Photo
    Karate fighter training martial arts in fitness studio.