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.
Oil is the leading source of global energy consumption. The world consumed over 181 quadrillion BTUs of energy in 2012, which is about 35% of the total global energy consumption. Natural Gas. Natural gas is one of the fastest growing sources of non-renewable energy. In 2012, the world consumed 123 quadrillion BTUs of natural gas, which means that natural gas makes up one quarter of total global energy consumption. That number is expected to rise since natural gas is projected to become the main source of energy in the United States over the next 50 years.