Introduction
The 20th century may be recorded as one of the most hectic century of all times. Both the two World Wars have encouraged and forced medical students to look into the human body with more depth and detail. As the world became fascinated with the explicit structure of the human body, they were also able to discover the cure and treatment for many unknown diseases in the past. From insulin, to treatment of cancer, to coding of the DNA, doctors seem to be able to remedy anything. Yet, a part of the human body remains as an unsolved puzzle to the scientists of today. …
