Memorandum to SCAP, Legal Section, Chief Investigation Division from SCAP, Legal Section, Investigating Officer Neal R. Smith, dated July 17th, 1947; on the investigation division case of Motoji Yamaguchi, which gives evidence to Ishii's…
Report of Investigation division by Taro Shimomura (SCAP), dated November 27th, 1946; on an interview with Motoji Yamaguchi stating he never engaged in human experimentation.