Middle age man with grey hair working at scientist laboratory smiling happy and positive, thumb up doing excellent and approval sign

  • Image ID #2313203

  • Dimension: 9504x6336px.

  • Size: 9MB

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Middle age man with grey hair working at scientist laboratory smiling happy and positive, thumb up doing excellent and approval sign

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approval excellent happy laboratory man positive scientist sign smiling adult beard cheerful chemistry clinic confident confident cool experiment expression finger friendly gesture gesturing good great grey hair hand happiness hispanic joy lab lifestyle long hair male mature microscope middle age ok okay professional research science senior showing smile success successful symbol thumb up
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