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.
Imports fill the gap between U.S. energy use and U.S. energy production. The United States is one of the largest energy importers in the world. The United States was energy self-sufficient until the late 1950s, when U.S. consumers began to use more energy than was produced in the United States (domestic production).