close-up of technician's hands preparing a medical microscope to analyse fluids

-focus 39aph39 aiming analyse analysis analyzing arm assistance background blood busy care charity clinic close-up concentration concepts disease doctor donate examining expertise failure flowing fluids giving hands healing health help hospital hygiene illness imagination indoor instrument laboratory lifestyles liquid medical medicine microscope nurse occupation out- patient preparation preparing public recovery relaxed rescue research responsibility s science service support technician urgency vein volunteer