<prompt> Translate the following text to EnglishMaombi yaliyosemwa hapo awali ambayo yalihusisha masomo ya kesi ya maeneo mengi ni msalaba - ambayo ni, habari kutoka maeneo kadhaa hukusanywa kwa wakati mmoja.  <response>: The applications previously discussed that involved multisite case studies are cross- that is, information from several sites is collected at the same time. 