After more than 5 years the group that received anastrozole had significantly better clinical results than the tamoxifen group. The trial suggested that anastrozole is the preferred medical therapy for postmenopausal women with localized breast cancer, which is estrogen receptor (ER) positive. Another study found that the risk of recurrence was reduced by 40%, but was associated with an increased risk of bone fractures.
The excretory system is a system of organs that removes waste products from the body. When cells in the body break down proteins (large molecules that are essential to the structure and functioning of all living cells), they produce wastes such as urea (a chemical compound of carbon, hydrogen, nitrogen, and oxygen).
The small intestine takes all the nutrients it needs from the food. Then, all the rest of the food travels down the large intestine and out the other end. The bowel has the j â¦ ob of recovering water from the waste food. Metabolite waste and by-products are removed from the blood by the kidneys. The CO2 is removed from the lungs by breathing. There are a few other waste processes such as excess heat removed by radiation and sweating.