Dr. Hassan Shaker is Professor of Urology in Ain Shams University, Cairo, Egypt. Fellow of McGill University and University of Toronto, Canada. Awarded the Canadian urological association Award 1995. Jack Lapidus Award for best research on voiding dysfunction 1996. Has more than 50 published scientific papers in reputable scientific Journals. Introduced sacral root neuromodulation to the Middle East for treatment of voiding dysfunctions. One of 5 experts world-wide forming "the contact laser urology board" which is the body responsible for standardization and clinical research of Twister laser. Member of the international continence society. Member of Egyptian, European and American urological associations.