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    Close-up of a macrophage, illustration. — Stock Photo
    Close-up of a macrophage, illustration.
    T-cell receptor-MHC-antigen complexes — Stock Photo
    T-cell receptor-MHC-antigen complexes
    Confident female boxer performing boxing stance in fitness studio — Stock Photo
    Confident female boxer performing boxing stance in fitness studio
    Digital illustration of senior man anatomy showing spleen tumour. — Stock Photo
    Digital illustration of senior man anatomy showing spleen tumour.
    Rear view of a teenage mixed-race male judoka wearing white judogi, warming up before a training in a gym, striking a pose, punching the air. — Stock Photo
    Rear view of a teenage mixed-race male judoka wearing white judogi, warming up before a training in a gym, striking a pose, punching the air.
    Transparent female body silhouette with purple colored spleen, digital illustration. — Stock Photo
    Transparent female body silhouette with purple colored spleen, digital illustration.
    Front view close up of a teenage mixed race female judoka, sitting on gym mats, wrapping red tape around her wrist. — Stock Photo
    Front view close up of a teenage mixed race female judoka, sitting on gym mats, wrapping red tape around her wrist.
    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
    Front high angle view of a teenage mixed race male judoka wearing white judogi, kneeling on mats in the gym before judo training. — Stock Photo
    Front high angle view of a teenage mixed race male judoka wearing white judogi, kneeling on mats in the gym before judo training.
    Front view close up of a teenage mixed race female judoka wearing blue judogi, warming up before a training in a gym, striking a pose, stretching her leg up and kicking the air. — Stock Photo
    Front view close up of a teenage mixed race female judoka wearing blue judogi, warming up before a training in a gym, striking a pose, stretching her leg up and kicking the air.
    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.
    Side view of a focused teenage Caucasian female judoka wearing a blue judoig, facing a wall picking up a judo jo stick during a judo training. — Stock Photo
    Side view of a focused teenage Caucasian female judoka wearing a blue judoig, facing a wall picking up a judo jo stick during a judo training.
    Colored illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Colored illustration of cancer cell being attacked by white blood cells.
    Illustration of spleen in male body silhouette on white background. — Stock Photo
    Illustration of spleen in male body silhouette on white background.
    Karate player in prayer pose in fitness studio — Stock Photo
    Karate player in prayer pose in fitness studio
    Illustration of dendritic cell interacting with T-cells on black background. — Stock Photo
    Illustration of dendritic cell interacting with T-cells on black background.
    Portrait of karate player performing karate stance in fitness studio — Stock Photo
    Portrait of karate player performing karate stance in fitness studio
    Antibodies attacking virus particles, computer illustration. — Stock Photo
    Antibodies attacking virus particles, computer illustration.
    Side view full body of soldier in camouflage outfit standing on knee before military service with small girl — Stock Photo
    Side view full body of soldier in camouflage outfit standing on knee before military service with small girl
    Front view close up of a teenage Caucasian female judo player wearing blue judogi, kneeling on mats in the gym before judo training. — Stock Photo
    Front view close up of a teenage Caucasian female judo player wearing blue judogi, kneeling on mats in the gym before judo training.
    3d illustration of cancer cells attacked and killed by lymphocytes. — Stock Photo
    3d illustration of cancer cells attacked and killed by lymphocytes.
    Kung fu fighter practicing martial arts in fitness studio. — Stock Photo
    Kung fu fighter practicing martial arts in fitness studio.
    Portrait of karate player performing karate stance in fitness studio — Stock Photo
    Portrait of karate player performing karate stance in fitness studio
    Frontal illustration of blue silhouette of obese woman with highlighted spleen on black background. — Stock Photo
    Frontal illustration of blue silhouette of obese woman with highlighted spleen on black background.
    High angle front 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
    High angle front 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.
    Antibodies attacking coronavirus particle, illustration. — Stock Photo
    Antibodies attacking coronavirus particle, illustration.
    Portrait of boxer performing boxing stance in fitness studio — Stock Photo
    Portrait of boxer performing boxing stance in fitness studio
    Basophil white blood cell, digital illustration. — Stock Photo
    Basophil white blood cell, digital illustration.
    3d illustration of cancer cell attacked and killed by lymphocytes. — Stock Photo
    3d illustration of cancer cell attacked and killed by lymphocytes.
    Abstract male silhouette with colored spleen, computer illustration. — Stock Photo
    Abstract male silhouette with colored spleen, computer illustration.
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration. — Stock Photo
    Monocyte and lymphocyte white blood cells in blood smear, digital illustration.
    Monocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Monocyte white blood cell in blood smear, digital illustration.
    Antibody molecular structure — Stock Photo
    Antibody molecular structure
    Lymphocyte white blood cells in human lymphatic system, digital illustration. — Stock Photo
    Lymphocyte white blood cells in human lymphatic system, digital illustration.
    Karate fighter practicing with sai weapon in fitness studio. — Stock Photo
    Karate fighter practicing with sai weapon in fitness studio.
    Man in defensive pose, computer illustration — Stock Photo
    Man in defensive pose, computer illustration
    Lymphocyte white blood cell in blood smear, digital illustration. — Stock Photo
    Lymphocyte white blood cell in blood smear, digital illustration.
    Karate player performing karate stance in fitness studio — Stock Photo
    Karate player performing karate stance in fitness studio
    Illustration of figure of obese man with visible spleen. — Stock Photo
    Illustration of figure of obese man with visible spleen.
    Confident female boxer performing boxing stance in fitness studio — Stock Photo
    Confident female boxer performing boxing stance in fitness studio
    Side view close up of a middle aged Caucasian male instructor giving self defence training in a boxing gym demonstrating a hold on a young mixed race man, while another young man looks on — Stock Photo
    Side view close up of a middle aged Caucasian male instructor giving self defence training in a boxing gym demonstrating a hold on a young mixed race man, while another young man looks on
    Colored illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Colored illustration of cancer cell being attacked by white blood cells.
    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 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.
    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.
    Spleen cancer in female body, computer illustration. — Stock Photo
    Spleen cancer in female body, computer illustration.
    Illustration of silhouette of obese man with visible spleen. — Stock Photo
    Illustration of silhouette of obese man with visible spleen.
    Illustration of silhouette of obese man with visible spleen. — Stock Photo
    Illustration of silhouette of obese man with visible spleen.
    Antibody, or immunoglobulin molecules — Stock Photo
    Antibody, or immunoglobulin molecules
    Illustration on black of silhouette of obese woman with highlighted spleen. — Stock Photo
    Illustration on black of silhouette of obese woman with highlighted spleen.
    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.
    Neutrophil white blood cells, digital illustration. — Stock Photo
    Neutrophil white blood cells, digital illustration.
    Basophil white blood cell and red blood cells, digital illustration. — Stock Photo
    Basophil white blood cell and red blood cells, digital illustration.
    Portrait of confident female boxer performing boxing stance in boxing ring — Stock Photo
    Portrait of confident female boxer performing boxing stance in boxing ring
    Rear view of a teenage mixed race female judoka wearing blue judogi, warming up before a training in a gym, striking a pose, punching the air. — Stock Photo
    Rear view of a teenage mixed race female judoka wearing blue judogi, warming up before a training in a gym, striking a pose, punching the air.
    Confident female boxer leaning on boxing ring in fitness studio — Stock Photo
    Confident female boxer leaning on boxing ring in fitness studio
    Red blood cells — Stock Photo
    Red blood cells
    Colored illustration of cancer cell being attacked by white blood cells. — Stock Photo
    Colored illustration of cancer cell being attacked by white blood cells.
    Structure of dog lymphatic system with lymph vessels, cropped, digital illustration. — Stock Photo
    Structure of dog lymphatic system with lymph vessels, cropped, digital illustration.
    Close up side view of a Caucasian female judoka drinking water from a plastic bottle, standing in the gym, taking a break in training. — Stock Photo
    Close up side view of a Caucasian female judoka drinking water from a plastic bottle, standing in the gym, taking a break in training.