An apparatus and method for harvesting bone using a manual, cylindrical, multi-directional coring device with a guided delivery system that can be inserted through a percutaneous or closed approach to extract precisely measured amounts of bone or bone marrow. In some aspects, a method of communicating in a wireless network includes generating a compressed block acknowledgment frame comprising a physical layer header, the physical layer header including at least one of the following: a block acknowledgment identifier, a starting sequence number of the compressed block acknowledgement frame, and a bitmap. With this arrangement, the character of the card can be read at less expensive cost as compared with a case in which it is read through a barcode displayed on a card because an expensive card reader having a complex structure is necessary to read the barcode. An antistatic coating material comprises a \u03c0 conjugated conductive polymer, a solubilizing polymer containing an anion group andor an electron attractive group, a nitrogen-containing aromatic cyclic compound, and a solvent.