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.
Frequently Asked Questions. How much energy does a person use in a year? In 2011, total energy use per person (or per capita consumption) in the United States was about 313 million British thermal units (Btu). The world per capita consumption of energy1 in 2011 was about 75 million Btu.