An imaging system in which, if image data of variable resolutions is to be handled in keeping with the increasing resolution of the image data, the processing is executed efficiently without lowering the processing capability of the respective circuits. In a method aspect of the present invention, of atenolol, pindolol, esmolol, propranolol, or metoprolol is administered to a patient through an inhalation route. The method includes transmitting bursts of management frames containing a broadcast-buffered indication for a corresponding subset of network identifiers of the wireless device, and transmitting bursts of management frames not containing any broadcast-buffered indication. The tab member is moveable between an unlocked configuration and a locked configuration.