This invention provides methods for treating neoplasias in a mammal. Respective tip and ring DC drive voltages supplied by tip and ring drive amplifiers are controlled so that the differential DC voltage across the wireline pair has a first constant value during on-hook mode, in which DC loop current may vary between zero and a first DC loop current threshold value associated with a transition from on-hook mode toward off-hook mode. A system, in a further embodiment, may include at least one circuit having a welding control circuit and a battery charge circuit. A recorder is actuated to record the preferred plurality of audio signals onto an electronic medium within the vehicle. Specifically, when the off-lane obstacles are present on both the left and right sides of the subject lane, the target in-lane ratio is such that lateral distances to both off-lane obstacles are equal.