1 Down syndrome, usually is caused by an extra copy of chromosome 21 (trisomy 21). Characteristics include decreased muscle tone, asymmetrical skull, slanting eyes and mild to moderate mental retardation.  Edward's syndrome, which is the second most common trisomy after Down syndrome. It is a trisomy of chromosome 18.
Guanxi describes the basic dynamic in personalized networks of influence, and is a central idea in Chinese society.
China (ä¸­å½, ChÅ«goku) is a main character in the series Hetalia: Axis Powers. He is part of the Allied Forces. In 2007 and early 2008, Himaruya gave human names to some of the characters and he received the name Wang Yao (çè, Wanyao or Ouyou, çè, WÃ¡ng YÃ o)