Sleep Technician Sam DeFrancesco places electrodes onto a panel during a sleep therapy session Monday, February 05, 1990 at Lower Bucks Hospital in B

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Sleep Technician Sam DeFrancesco places electrodes onto a panel during a sleep therapy session Monday, February 05, 1990 at Lower Bucks Hospital in Bristol Township, Pennsylvania. (Photo by William Thomas Cain/CAIN IMAGES)

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Size: 4797px × 3193px
Location: Bristol, Pa.
Photo credit: © William Thomas Cain / Alamy / Afripics
License: Licensed
Model Released: No

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