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Doctor Luca Tarantino electrophysiologist at the Humanitas Gavazzeni Hospital in Bergamo, Italy. Their eyes are tired. Their cheekbones rubbed raw from protective masks. They don't smile. The doctors and nurses on the front lines of the coronavirus pandemic are almost unrecognizable behind their masks. (Image: AP)

Heart-Wrenching Photos of Overworked Doctors & Nurses

The intensive care doctors and nurses on the front lines of the coronavirus pandemic are often almost unrecognizable behind their masks, scrubs, gloves and hairnets their only barrier to contagion.