Background & Aims. Patients with recurrent bleeding from gastrointestinal vascular malformations are a challenge to treat. We investigated the long-term efficacy and safety of thalidomide for refractory bleeding from gastrointestinal vascular malformations in an open-label, randomized study.
China is Worldâs Largest Energy Consumer. World consumption of energy has increased 5.6 percent in 2010, according to BPâs Statistical Review of World Energy. This is the largest increase since 1973, which happened to be a memorable year in energy history.
The Energy Industry in the United States. The United States is a leader in the production and supply of energy, and is one of the worldâs largest energy consumers. U.S. energy companies produce oil, natural gas, renewable fuels, as well as electricity from clean energy sources such as wind, solar, and nuclear power.