The present invention relates to novel human secreted proteins and isolated nucleic acids containing the coding regions of the genes encoding such proteins. The internal wall comprises a greater rigidity than the tube sidewalls so that, when a carcass and the tube are mounted on a rim, and during inflation, the tube sidewalls contact the carcass sidewalls no later than the internal wall contacts a crown portion of the carcass. That one port of each multi-port switch is connected to a single one of the less complex switches. The walls extend toward each other so that the ink supply reservoirs taper. Initially, known cancer cells are imaged to enable a marker to be identified.