1. Cavernosal alpha-blockade: a new technique for investigating and treating erectile impotence;Brindley;Br J Psychiatr,1983
2. Product brochure: C T D Special: a tremendous asset to the impotent male;Fre-San Products Manufacturing Co,1976
3. Vascular surgery for the treatment of the impotent male;Hawatmeh,1983
4. Lederer O: Surgical device. U.S. Patent Number 1,225,341. May 8, 1917.
5. Noninvasive device to produce and maintain an erection-like state;Nadig;Urology,1986