Comparison of delivery characteristics from a combination metered-dose inhaler using the Andersen cascade impactor

Changning Guo1, Stacey R Gillespie, John Kauffman

  • 1U.S. Food and Drug Administration, Division of Pharmaceutical Analysis, 1114 Market Street, Room 1002, St. Louis, Missouri 63101, USA. changning.guo@fda.hhs.gov

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