[8]
Passy–Muir valve in children with tracheotomy[J] . Judith E. Cho Lieu,Harlan R. Muntz,Debbie Prater,Mary Blount Stahl.International Journal of Pediatric Otorhinolaryngology . 1999 (3)
[8]
Passy–Muir valve in children with tracheotomy[J] . Judith E. Cho Lieu,Harlan R. Muntz,Debbie Prater,Mary Blount Stahl.International Journal of Pediatric Otorhinolaryngology . 1999 (3)