Myasthenia gravis is an autoimmune disease that causes muscle weakness. The symptoms are caused by the immune system interfering with the transmission of messages from the nervous system to the muscles. There is no cure, but the symptoms can be managed.
Location of Ningbo on a map. Ningbo is a city found in Zhejiang, China. It is located 29.88 latitude and 121.55 longitude and it is situated at elevation 15 meters above sea level. Ningbo has a population of 3,491,597 making it the 3rd biggest city in Zhejiang.
Click here to learn about the various locations within Papua New Guinea. Lying just south of the equator, 160km north of Australia, Papua New Guinea (PNG) is part of a great arc of mountains stretching from Asia, through Indonesia and into the South Pacific.