Authors’ response

In her letter to the editor, Brown1 has a number of questions for us regarding the pressure required to trigger epinephrine auto-injectors (EAIs) and the methodology to justify the conclusions of our study.2 Her major concern is that the force required to trigger the Emerade (Medeca Pharma AB, Uppsala, Sweden) is not known so the Emerade might not inject at lower trigger forces than other EAIs.

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