Abstract: This is a novel two-player board game which uses addition and subtraction to initiate the movement of a player's pieces. The game is comprised of two sections; each section consists of a plurality of spaces containing integers. The interior section is comprised of opposite sides separated by zeros, one side containing negative integers and the other positive. Pieces are provided to each player for separate use in the exterior and interior sections. Movement is initiated by positioning pieces in the exterior section on spaces whose integers produce a difference of two integers found in the interior section, thus enabling pieces to move from one space to another. The object of this game is to be the first player with all his/her pieces positioned within the interior section on spaces whose integers when added together equal zero.

Abstract: An adjustable biopsy paddle for compressing tissue to be examined and assisting localization of a needle relative to a nonpalpable lesion, the paddle including a locator plate having a plurality of tissue access holes of generally uniform diameter and of generally uniform spacing in a first direction, typically the lateral direction. The paddle further includes a guide for permitting movement of the plate in the first direction for a distance of at least half the distance of the spacing, and a bracket for slidably supporting the plate.

Abstract: An adjustable biopsy paddle for compressing tissue to be examined and assisting localization of a needle relative to a nonpalpable lesion, the paddle including a locator plate having a plurality of tissue access holes of generally uniform diameter and of generally uniform spacing in a first direction, typically the lateral direction. The paddle further includes a guide for permitting movement of the plate in the first direction for a distance of at least half the distance of the spacing, and a bracket for slidably supporting the plate.