<prompt> Translate the following text to EnglishChang na Astrachan waliandika katika ripoti yao ya awali kuwa viwango vya chini vya kupima BAC kwa madereva waliolala kileo na madaktari wa idara ya dharura.  <response>: In an earlier report, Chang and Astrachan documented low BAC testing rates for intoxicated drivers by emergency department physicians. 