Huerta C, Rivero E, Rodriguez LA. Incidence and risk factors for psoriasis in the general population. Arch Dermatol. 2007 Dec;143(12):1559-65.
Hauber B, Candrilli S, Snyder EH, McBurney CR. Validation of a model to assess long-term disease progression in Alzheimer's disease patients treated with rivastigmine. Neurobiol Aging. 2004 Jan 1;25:S136.