1. Recurrent condyloma acuminatum due to piercing of the penis;Altman;Cutis,1997
2. The urologist’s guide to genital piercing;Anderson;BJU International,2003
3. The hole picture: Risks, decision making, purpose, regulations, and the future of body piercing;Armstrong;Clinics in Dermatology,2007
4. Association of Professional Piercers, 2014. Official Website. Available at: http://www.safepiercing.org/
5. Body Modification Ezine, 2014. Official Website. Available at: www.bme.com