A memory card connector is provided for receiving a memory card having a plurality of conductive contacts. And because the cylindrical shape is efficient in carrying loads, the size of the new hydroforming apparatus is smaller than conventional hydroforming apparatus. The at least one latching mechanism controls volume of fluid used during a flush. Additionally provided in the invention are methods of screening candidate compounds to identity additional cytoprotective compounds or cytoprotective proteases. An oral hygiene method includes brushing teeth with a dentifrice to which the oral composition has been added, and gargling with a mouth wash which includes at least one extract of crude drug selected from the group consisting of glycyrrhizae radix, arecae semen, myristicae semen and leonuri herba. Furthermore, the at least one display is arranged between the at least one detection structure and the plurality of key caps, such that the individual labels of the plurality of keys are viewable via the transparent top surfaces of the respective key caps.