A method of assisting recovery of an injury site of brain or spinal cord injury includes providing a therapeutic dose of X-ray radiation to the injury site through an array of parallel microplanar beams. The present invention provides a compound represented by the formulawherein each symbol is as defined in the specification, or a salt thereof. At least one of the blades has a variable blade width that increases in a direction along the longitudinal axis. The pistol includes a firing mechanism adapted to actuate the valve assembly. After the inflator is inserted into the cushion, the throat is sealed closed by wrapping the throat around the inflator housing and being cinched when the airbag assembly is mounted on a vehicle. The garter for items of apparel and method of use includes a band having an engagement means for selectively engaging an item of apparel.