Here below are the publications (1) participated by Gabriele Via using the term string helmet (as cross-checked throughout PubMed, counted from 2020, including only Ticino affiliations).
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1) Randomized clinical trial comparing helmet continuous positive airway pressure (hCPAP) to facemask continuous positive airway pressure (fCPAP) for the treatment of acute respiratory failure in the emergency department
The American Journal of Emergency Medicine, 22 giugno 2021