Sites listed here will primarily be about Niemann-Pick Disease. Topics covered may include causes, symptoms, diagnosis, management, research, and its effect on patients and families. Sites with more general content belong in a more general category.
"There are three recognised forms of Niemann-Pick Disease, Niemann-Pick Type A, B and C. Niemann-Pick Type A and B are caused by an enzyme deficiency, causing a build up of toxic materials in the body's cells. Niemann-Pick Type C is not caused by an enzyme deficiency, but the end result is the same; an accumulation of materials (cholesterol and other fatty acids) in the body's cells." from http://www.niemannpick.org.uk/