A phase-shift network may include a first capacitor connected between a first input node and a first output node, and a second capacitor connected between a second input node and a second output node. The lid and base are attached by a two stage attachment arrangement. Each projection button may include a projection surface disposed within the button capable of being viewed by a player of the gaming machine. The methods further include the use of adhesion-promoting reagents. A visual representation of the malignancy classification of the region of lung tissue is outputted.