Research in the British Medical Journal was scathing: Here are their bullet points: 1  Arthroscopic knee surgery is frequently and increasingly used to treat middle aged and older patients with persistent knee pain.
China, officially the People's Republic of China (PRC), is a sovereign state in East Asia. It is the world's most populous country, with a population of over 1.35 billion.The PRC is a single-party state governed by the Communist Party of China, with its seat of government in the capital city of Beijing.hina is home to at least 551 species of mammals (the third-highest such number in the world), 1,221 species of birds (eighth), 424 species of reptiles (seventh) and 333 species of amphibians (seventh). China is the most biodiverse country in each category outside the tropics.
Most large countries are formally constituted as federations. China does not call itself a federation but is composed of provinces and autonomous regions (a term borrowed from the Soviet Union) with formal powers similar to those in named federations.