A RF receive coil system for imaging a breast on a human chest with a horizontal field MRI system includes a volume saddle coil adapted to be contoured about the chest; and a Helmholtz coil having a lower portion adapted to be contoured about the chest and an upper portion adapted to be above the chest The coils are operable in quadrature mode. The system and method of the present invention includes a demand component and a supply component. The first amorphous semiconductor region, insulated for the second amorphous semiconductor region by at least ore dielectric region in the contact with the semiconductor substrate, and the second amorphous semiconductor region form an interdigitated structure. The proximal flex circuit may be configured to operatively or conductively connect to an electrical connector. In another embodiment, the present invention provides an isolated nucleic acid molecule having a sequence corresponding to or complementary to accessible regions of bcl-6 mRNA, and vectors, cells, compositions, and kits comprising same. The composition is useful for identifying sentinel lymph nodes.