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.
Fossil Fuels Dominate Primary Energy Consumption. 1  Coal, natural gas, and oil accounted for 87 percent of global primary energy consumption in 2012. 2  The International Energy Agency predicts that by 2017 coal will replace oil as the dominant primary energy source worldwide.