It goes without saying that the desire to accomplish the task with more confidence, to avoid wasting time and labour, and to spare our experimental animals as much as possible, made us strictly observe all the precautions taken by surgeons in respect to their patients.
Bio: Umaru Musa Yar'Adua was the President of Nigeria and the 13th Head of State. He served as governor of Katsina State in northern Nigeria from 29 May 1999 to 28 May 2007.
