Aromatase inhibitor. Aromatase inhibitors (AIs) are a class of drugs used in the treatment of breast cancer in postmenopausal women and gynecomastia in men. They may also be used off-label to reduce increase of estrogen conversion during cycle with external testosterone. They may also be used for chemoprevention in high risk women.
Supporters of the Keystone XL Pipeline herald it as a job-creating machine, producing as many as 119,000 jobs. But only 3,900 workers will actually be required to build the pipeline to carry oil from Canada to the Gulf of Mexico, according to the U.S. State Department, and those jobs will only last for a year. There will be 35 permanent positions created.
He points out the pipeline has already passed the State Departmentâs own environmental impact assessment. The 2,700-kilometre line would move bitumen from Albertaâs oilsands to refineries on the Gulf Coast of Texas. âThe Keystone XL pipeline has been studied long and hard,â Wall said in a release Monday.