I have been reading your publication for more than a year and have never seen any mention of normal pressure hydrocephalus. This condition afflicts thousands of people and is often misdiagnosed and treated as Parkinson's or Alzheimer's. The closest you came to discussing this disease was your July/August 2008 article about intracranial hypertension, which is also caused by cerebrospinal fluid in the brain. The treatment is almost identical to that of hydrocephalus. It is estimated that one-third of nursing home patients are suffering from normal pressure hydrocephalus and are being misdiagnosed. Is there a reason why this condition is never mentioned in your publication?