The Board of the University hospitals approved on  40% off of the value of medical tests to conduct tests include a complete blood image and functions of the liver (SGOT-SGPT) and functions of the kidneys (Urea-Creatinine) for the workers of the leather factory in  industrial (200 workers) as part of research doctorate thesis of  doctor / Faten Ezz El-Arab Younis assistant lecturer at the department of Public Health and community medicine.