Participants suffering from at least 1 DSM-IV or ICD-10 classified phobia ( social phobia , agoraphobia with or without panic disorder , and/or specific phobia as ascertained by a telephone interview at baseline ) were randomly allocated to either a 5-week Internet-based guided self-help program based on exposure therapy with weekly student support followed by face-to-face psychotherapy ( n = 105 ) or a wait-list control group followed by face-to-face psychotherapy ( n = 107 ) .