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. 2020 Jun 3:10.1097/ALN.0000000000003431. doi: 10.1097/ALN.0000000000003431

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Copyright © 2020, the American Society of Anesthesiologists, Inc. All Rights Reserved

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Fig. 1. — (A) Devices used to build a closed-suction system for intubated patients. (B) Step-step explanation to build a closed-suction system with an ultrasound probe cover.