Prevalence of smoking among school adolescents in Khartoum State.

Tobacco is the single most important cause of chronic morbidity in the Developed World. Tobacco use primarily begins in early adolescence, reportedly before the time of high school graduation. By 2015 tobacco use is projected to cause 50% more deaths than AIDS.

Walker-Warburg Syndrome: A Case with multiple uncommon features.

Walker-Warburg syndrome (WWS) is a rare and lethal autosomal recessive disorder, caused by defective glycosylation of α-dystroglycan that is important for muscle integrity and neuronal migration. Mutations in six genes involved in the glycosylation of α-dystroglycan (POMT1, POMT2, POMGNT1, FCMD, FKRP and LARGE) have been identified in WWS patients, and others remain under study. Prenatal diagnosis may be possible by means of prenatal ultrasonography, or magnetic resonance imaging.