Disclosed herein are a printed circuit board and a method of manufacturing the same. The display driving method includes the steps of setting the sustain times of each of the sub fields approximately constant within 1 field, and displaying image data on the display using N1 gradation levels from a luminance level 0 to a luminance level N. The laydown area can be defined on a surface of a sheet laminated to another sheet to define one of cover boards. So flexed, the rod tensions the fluid container, adding structural stability to the fluid warming cassette. The tails include an elongated external urine-transport surface sized and configured to transport urine along the ureter.