Man yawning. Closeup of doctor yawning in white coat. Portrait of doctor tired. Yawning man in laboratory. Tired scientist in lab. Tired doctor at work. Medical laboratory worker. Medical worker
Close up shot of tired and exhausted doctor working on the computer in modern office or laboratory
Male doctor gets tired at the office
Tired doctor sleeping at medical workplace. Medical specialist tired at work. Female doctor rest at work place at night. Woman doctor sleep at hospital workplace
Doctor sitting in the office and looks very tired
Doctor sitting in the office and looks very tired
Unhappy doctor sitting in the office and looks tired
Doctor finish working in the office and looks tired
Doctor working on samples in the office and looks tired
Doctor working in the office and looks very tired
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Tired doctor rubbing his temples and falling asleep on table in break room while overworking in hospital
Tired and exhausted physician in his office working. Modern laboratory or office. Science and research