Conferences and symposia attended
10-12 March 1996
The 12th Congress of the German society of Physiology and Biochemistry, Hannover, Germany16-18 March 1998
12-16 March
The 13th Congress of the German Society of physiology and Biochemistry, Zurich, Switzerland.
3-5 January 2006
African universities Congressv , Khartoum Sudan