A method for the treatment of inflammatory disorders is disclosed, particularly the treatment of arthritis. The subsurface safety valve can include a closure mechanism. Also disclosed is a downhole measurement assembly, which includes a radiation source, a power source, and at least one interlock operatively connected between the power source and the radiation source, where the at least one interlock is adapted to selectively arm and disarm the radiation source. The video game selection program further creates and stores a table for associating downloaded video game titles with corresponding emulator program types and inhibits the downloading of emulator program types which have been previously downloaded and stored on the home video game system.