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50 abstract baby black blood bloodtest brain business button capsule care child collection communication company corporate cure dentist dermatology design dextrose disease doctor dose drug drugs element emblem eye eyes geometrical heal health heart heartbeat hospital icon icons identity illness injection intestine kidney laboratory leaf lips logo logotype lungs medical medication medicine nature nurse optic orange patient pattern pharmacy pregnancy prescription reflection remedy set shape shiny sign sport star stripe style surgery symbol therapy tooth treatment ultrasound vector web xray