Figure 4.
Device-independent inhalation errors: participants with each inhalation error assessed by a device-independent inhalation-error checklist, (a) without instructions (intuitively) and (b) after reading instructions.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.