<prompt> Translate the following text to EnglishIngawa yeye pia alikuwa na wasiwasi kuhusu vitabu vya kuongoza vya kawaida, alibainisha kwamba uchunguzi unaonyesha kwamba vitabu hivyo havitokezi matibabu mabaya zaidi.  <response>: Although he, too, had concerns about standardized manuals, he noted that studies show that such manuals do not result in poorer treatments. 