<prompt> Translate the following text to EnglishUtafiti wa utafiti uliofanywa katika Chuo Kikuu cha Maryland Shock Trauma Center huko Baltimore, Marekani, ulionyesha kuwa uchunguzi huo ulifanywa kwa kutumia barua ya maoni na simu mbili au zaidi za kufuatilia ili kupanua hatua ya kuingilia zaidi ya mahojiano ya hali ya dharura.  <response>: A currently funded trial at the University of Maryland Shock Trauma Center in Baltimore is using a feedback letter and two or more follow-up phone calls to extend the intervention beyond the emergency setting interview. 