Because Bálints syndrome is not common and is difficult to assess with standard clinical tools, the literature is dominated by case reports and confounded by case selection bias, non-uniform application of operational definitions, inadequate study of basic vision, poor lesion localisation, and failure to distinguish between deficits in the acute and chronic phases of recovery. References
External links
National Institute on Deafness and Other Communication Disorders - Apraxia of speech
Blood is collected from volunteer donors who agree to let doctors draw blood stem cells from their blood or bone marrow for transplantation. Blood that is taken straight from collected blood stem cells is known as peripheral blood stem cell donation. A peripheral stem cell donor must have the same blood type as the patient receiving the blood cells. Once the stem cells are in the patients body through an IV, the cells mature and become blood cells. Before donation, a drug is injected into the donor, which increases the number of stem cells into their body. Feeling cold and lightheaded, having numbness around the mouth and cramping in the hands are common symptoms during the donation process. After the donation, the amount of time for recovery varies for every donor, "But most stem cell donors are able to return to their usual activities within a few days to a week after donation". Epidemiology
For those with severe bone marrow failure, the cumulative incidence of resulting stem cell transplantation or death was greater than 70% by individuals 60 years of age. The incidence of bone marrow failure is triphasic: one peak at two to five years during childhood (due to inherited causes), and two peaks in adulthood, between 20 and 25 years old and after 60 years old (from acquired causes).One in ten individuals with bone marrow failure have unsuspected Fanconi anemia (FA). FA is the most common inherited bone marrow failure with an incidence of one to five episodes per million individuals.