A retention system for use with a bridle installed in a nose of a patient includes a member coupled to a medical device that is suspended from a nose of a patient and a connector for coupling to a bridle that is installed in a nose of a patient. These compositions are used for the following purposes: to disrupt mitochondrial function, to disrupt nitric oxide synthesis, and to reverse ongoing adverse immune reactions, such as autoimmune diseases and graft rejection. The UE will avoid the blacklisted eNBs and will attempt to connect to other eNBs. The layer for preventing exfoliation of the transparent conductive film contains a conductivity type determining impurity in a concentration of 1\xd71019 cm\u22123 or higher.