There is no evidence that americans were among the victims in the unit 731 compound , although there have been persistent but unproven accusations that american prisoners of war in mukden ( nowshenyang ) were subject to medical experimentation .
Through the south manchurian railway , she administered the railway areas , including several towns and large sections of such populous cities as mukden and changchun ; and in these areas she controlled the police , taxation , education , and public utilities .