To the Editor: Authors' response to "New approaches towards actionable mobile health evaluation" by John Torous and Sarah Lagan. (14th August 2021) - Hensher, Martin; Cooper, Paul; Dona, Sithara Wanni Arachchige; Angeles, Mary Rose; Nguyen, Dieu; Heynsbergh, Natalie; Chatterton, Mary Lou; Peeters, Anna