A document processing system and method are disclosed which are capable of performing inverse retrieval in response to a request issued by a user and providing retrieved document data to the user. In particular, the method, compositions, and diagnostic tests relate to a combination of one or more genes, where the expression of these genes indicates a predisposition to develop, or a diagnosis of, lupus and other related diseases or disease subsets. The head member is mounted to main portion of the base. The second fixing portion is movably mounted to the first fixing portion. The data key is capable of being configured as an activation key andor a deactivation key. The pillow rests on the bottom and is held between the two walls, and a transparent cover covers the pillow and the base member.