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    Human Platelets, computer illustration — Stock Photo
    Human Platelets, computer illustration
    High angle of crop mother using nebulizer for inhalation of boy sitting in oxygen mask on sofa — Stock Photo
    High angle of crop mother using nebulizer for inhalation of boy sitting in oxygen mask on sofa
    Senior woman with nasal cannula and IV bag and nurse holding tray in background. — Stock Photo
    Senior woman with nasal cannula and IV bag and nurse holding tray in background.
    Side view of content sick boy using respirator and breathing oxygen from inhaler while sitting on sofa at home — Stock Photo
    Side view of content sick boy using respirator and breathing oxygen from inhaler while sitting on sofa at home
    Scenic view of scuba divers swimming under water with fishes — Stock Photo
    Scenic view of scuba divers swimming under water with fishes
    Cardiovascular system transporting nutrients and oxygen — Stock Photo
    Cardiovascular system transporting nutrients and oxygen
    Hand of a doctor giving oxygen to a pregnant woman in operating room — Stock Photo
    Hand of a doctor giving oxygen to a pregnant woman in operating room
    Athlete in oxygen mask riding exercise bike with measuring of oxygen consumption. — Stock Photo
    Athlete in oxygen mask riding exercise bike with measuring of oxygen consumption.
    Hands of doctor placing oxygen mask on a pregnant woman face in operating room — Stock Photo
    Hands of doctor placing oxygen mask on a pregnant woman face in operating room
    Measuring oxygen saturation in blood with pulse oximeter. — Stock Photo
    Measuring oxygen saturation in blood with pulse oximeter.
    High angle view of thoughtful mixed race female patient relaxing in bed in the ward at hospital. Woman is keeping her hands on chest. — Stock Photo
    High angle view of thoughtful mixed race female patient relaxing in bed in the ward at hospital. Woman is keeping her hands on chest.
    Scuba diver at the Three Amigos Dive Site, Belize Barrier Reef; Belize — Stock Photo
    Scuba diver at the Three Amigos Dive Site, Belize Barrier Reef; Belize
    Blood oxygen monitor on finger of patient in intensive care ward, close-up. — Stock Photo
    Blood oxygen monitor on finger of patient in intensive care ward, close-up.