M Ellaithi* 1,2,3
, T Nilsson* 4
, D Gisselsson* 4
, A Elagib5
, H Eltigani6
and I Fadl-Elmula7,8 
1Institute of Endemic Diseases, University of Khartoum, Khartoum, Sudan
2International University of Africa, Faculty of Medicine and Health Sciences, Khartoum, Sudan
3The Orchids Society for Congenitally Malformed Children. Khartoum, Sudan
4Department of Clinical Genetics, Lund University, Lund, Sweden
5Tropical Medical Research Institute, Khartoum, Sudan
6Department of Anatomy, Faculty of Medicine, University of Khartoum, Khartoum, Sudan
7Faculty of Medical Laboratory Sciences, Al Neelain University, Khartoum, Sudan
8Al Neelain Medical Centre, Al Neelain University, Khartoum, Sudan