Aerosol delivery to wheezy infants: a comparison between a nebulizer and two small volume spacers.
Pediatr Pulmonol. 1997 Mar;23(3):212-6. doi: 10.1002/(sici)1099-0496(199703)23:3<212::aid-ppul7>3.0.co;2-p.
Pediatr Pulmonol. 1997.
PMID: 9094730
Clinical Trial.