Lack of Association between Catalase Gene Polymorphism and Susceptibility to Vitiligo in an Egyptian Population Research Authors Abdel-Khalek Hassan Younes1, Essam- Eldin Mohammed1, khaled Mohammed Tawfik1, Hosny Badrawy Hamed2, Shady Mahmoud Attia3 and Mohamed L Elsaie Research Department Department of Clinical Pathology Research Journal Pigmentary disorder Research Member Hosny Badrawy Hamed Omran Research Rank 1 Research Year 2014