“…The studies examined various types of interventions, including multi-component strategies [11][12][13], letter reminders [14][15][16][17][18], telephone recall [19,20], and a combination of letters and telephone calls [21]. One author [22,23] used an Electronic Health Record (EHR) plus letter reminder and/or phone calls and an Asthma Education Tool (AET) in two separate studies.…”