The Russian armed forces are the unquestioned second strongest military power in the world. Russia has the world's largest tank fleet, the second largest aircraft fleet behind the US, and the third largest submarine fleet behind the US and China.
Proton therapy is an advanced type of radiation treatment that uses a beam of protons to deliver radiation directly to the tumor, destroying cancer cells while sparing healthy tissues. Protons enter the body with a low radiation dose, stop at the tumor, match its shape and volume or depth, and deposit the bulk of their cancer-fighting energy right at the tumor.
Proton-beam therapy is a controversial alternative to conventional radiotherapy for prostate cancer patients; opponents say that evidence supporting its use just isn't there. However, a new study shows extremely high efficacy in 5-year outcomes for patients in all risk categories treated with proton-beam therapy.n comparison, acquisition costs for IMRT systems range from $1.8 million to $5.4 million, according to a 2009 report by the Institute for Clinical and Economic Review (ICER) on management options for low-risk prostate cancer.