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Defining the learning curve of point-of-care ultrasound for confirming endotracheal tube placement by emergency physicians

Crossref DOI link: https://doi.org/10.1186/s13089-015-0031-7

Published Online: 2015-09-17

Published Print: 2015-12

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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