Analysis of information sources in references of the Wikipedia article "Hiroshi Nakajima" in English language version.
Much of the success was attributed to the energy and flexibility of Mann's highly personal leadership.
WHO officials said privately that Nakajima wanted to dilute the considerable organizational autonomy that Mann had won for the AIDS program within WHO and that was the basic cause of friction between the two men.
Eventually, Dr. Mann's zeal on the issue brought him into conflict with the W.H.O. director general, Dr. Hiroshi Nakajima, and, in March 1990, Dr. Mann resigned.