60.2 MB (15.0 MB compressed)
5616 x 3744 pixels
47.5 x 31.8 cm ⏐ 18.7 x 12.5 in (300dpi)
AMELIE-BENOIST / BSIP / SCIENCE PHOTO LIBRARY AMELIE-BENOIST / BSIP / SCIENCE PHOTO LIBRARY
Reportage at CENAS, a Swiss sleep centre. A nurse places sensors on a patient who is about to undergo a polysomnography. Polysomnography is a test that records a complete night's sleep. The test involves monitoring various physiological variables in order to quantify and qualify sleep disorders. Pulse oxymetry.
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