sentences:  The talks were brokered by the former Nigerian military leader Yakubu Gowon and the former U.S. President Jimmy Carter.The lawyer representing the Nigerian government was Babatunde Irukera.In October 2009, it was announced that the medical records of the victims of the 1996 Pfizer Trovan clinical trial could not be found at the Kano State Ministry of Health nor at the Infectious Diseases Hospital (IDH) where the trials were conducted according to the state's Attorney General and Commissioner for Justice Barrister Aliyu Umar.