CITATIONS

Term: progressive multifocal leukoencephalopathy
Http://: http://www.merck.com/mmpe/sec16/ch217/ch217f.html
Http://: http://www.ninds.nih.gov/disorders/pml/pml.htm
Http://: http://www.merriam-webster.com/medical/progressive%20multifocal%20leukoencephalopathy