An object is to provide a display device on which 3D images can be perceived from a large area. The novel method uses historical patient medical records to create tables, which are used by a medical center to determine what diagnostic test is associated with confirmation of a disease in question. At this time, the CPU deletes from the blood pressure storage unit those measurement data based on which the representative measurement data is calculated. 0 to about 20% of an nonionic surfactant; and d.