Given the task definition and input, reply with output. Given a paragraph, generate a claim that is supported by the given paragraph. 1) The claim must contain information from within the paragraph. 2) A sentence within the paragraph can be used as a claim. 3) The claim should not have contradictions within the paragraph. 4) The claim should be at most one sentence long.

Although the story mentions the high upfront cost of proton therapy, it does not describe the cost of treatment compared to other alternatives. Thestory points out that there have been no controlled treatment trials for proton therapy inprostate cancerincreasingly the targeted useso there really are no good data on benefits. Since the technology is relatively new there are probably no good long-term survival estimates even from case series. The story mentions side effects of proton therapy, such as incontinence andsexual side effects in men with prostate cancer, and explains that they may be more common than reported in studies. The story mentions that there is a lack of randomized trials comparing proton therapy to conventional radiation. The story does not appear to engage in disease mongering. However, the article doesn't indicate that many of the 186,320 new prostate cancer cases are early-stage for which the benefit of any treatmentlet alone proton beamremains uncertain. The story quotes multiple experts who provide meaningful perspectives on the value of proton therapy. The story mentions conventional radiationand surgery as the alternatives to proton therapy. The story accurately describes the limited availability of proton therapy. The story accurately describes the novelty of proton therapy. Because the story quotes multiple experts, the reader can assume that the story does not rely on a press release as the sole source of information.
The promise of proton-beam therapy