A voltage regulator circuit includes a transistor and a capacitor. The invention also provides pharmaceutically acceptable compositions comprising said compounds and methods of using the compositions in the treatment of various disease, conditions, or disorders. Differences in the scattered radiation detected from the first radiation beam and from the second radiation beam provide the data needed to differentiate between particles and COPs. A valve seat assembly and a cylindrical cartridge seal assembly define a cartridge which contains a reciprocating plunger shaft. The inductive coupling sites also supply the patient care unit with electrical energy by means of an external line connection, which is likewise coupled inductively with the patient care unit. The enhanced image data is removed from the client computer immediately following printing.