tracheotomy speaking valve

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The Use of Speaking Valves in Children With Tracheostomy Tubes
Weeda Zabih, Theresa Holler, Faiza Syed, Laurie Russell, Jennifer Allegro and Reshma Amin

Respiratory Care December 2017, 62 (12) 1594-1601; DOI: https://doi.org/10.4187/respcare.05599