This combined purchase contains: London Neurogenetics Database - details of 2,953 syndromes involving the central and peripheral nervous system and 32,441 references Dysmorphology Photo Library - an extensive library of 11,230 clinical photographs which illustrate the mental retardation and malformation syndromes described in the London Dysmorphology Database and London Neurogenetics Database. Free online updates for all purchasers of version 2.2 For all purchasers of the new databases a free online updating service is available. Updates will be placed on our web site at regular intervals. Users can download the updates, and by simply clicking a button, integrate them into their database.