Generate an explanation for the given claim using the provided supporting material from the paragraph. Please consider the following points while generating an output. 1) The claim will always have supporting proof in the paragraph, and the paragraph will have a clear point of view supporting the claim. 2) There can be instances where direct correlation to the claim is not available. Make use of the sentences in the paragraph to provide a corresponding output supporting the claim. 3) The explanation should be at least one and at most twelve sentences long.

[Q]: Paragraph: Cancer patients increasingly are having their care guided by gene tumor boards, a new version of the hospital panels that traditionally decided whether surgery, radiation or chemotherapy would be best. These experts study the patient’s cancer genes and match treatments to mutations that seem to drive the disease. “We dissect the patient’s tumor with what I call the molecular microscope,” said Dr. Razelle Kurzrock, who started a board at the University of California, San Diego, where Cairnes is treated. It’s the kind of care many experts say we should aim for — precision medicine, the right drug for the right person at the right time, guided by genes. There are success stories, but also some failures and many questions: Will gene-guided care improve survival? Does it save money or cost more? What kind of gene testing is best, and who should get it? “I think every patient needs it,” especially if cancer is advanced, said Kurzrock, who consults for some gene-medicine companies. “Most people don’t agree with me — yet. In five years, it may be malpractice not to do genomics.” Few people get precision medicine today, said Dr. Eric Topol, head of the Scripps Translational Science Institute. “The only thing that’s gone mainstream are the words.” HOW IT WORKS NOW If you have a cancer that might be susceptible to a gene-targeting drug, you may be tested for mutations in that gene, such as HER2 for breast cancer. Some breast or prostate cancer patients also might get a multi-gene test to gauge how aggressive treatment should be. Then most patients get usual guideline-based treatments. If there’s no clear choice, or if the disease has spread or comes back, doctors may suggest tumor profiling — comprehensive tests to see what mutations dominate. That’s traditionally been done from a tissue sample, but newer tests that detect tumor DNA in blood — liquid biopsies — are making profiling more common. The tests cost about $6,000 and many insurers consider them experimental and won’t pay. Gene tumor boards analyze what the results suggest about treatment. They focus on oddball cases like a breast cancer mutation in a colon cancer patient, or cancers that have widely spread and are genetically complex. The only options may be experimental drugs or “off-label” treatments — medicines approved for different situations. But as tumor profiling grows, it’s revealing how genetically diverse many tumors are, and that oddball cases are not so rare, said Dr. John Marshall. He heads the virtual tumor board at Georgetown Lombardi Comprehensive Cancer Center that also serves cancer centers in Pennsylvania, North Carolina, Michigan and Tennessee. “There is a little bit of faith” that testing will show the right treatment, but it’s not a sure thing, said Dr. Lee Schwartzberg, who heads one participating center, the West Cancer Center in Memphis. Dr. Len Lichtenfeld, the American Cancer Society’s deputy chief medical officer, is optimistic yet wary. Drugs that target BRAF mutations work well for skin cancers called melanomas, but less well for lung or colon cancers. “Just because a mutation occurs it doesn’t mean that drug is going to work in that cancer,” he said. LUCKY CASES When it does, results can be dramatic. Cairnes’ cancer was between her stomach and esophagus, and had spread to her liver, lungs and lymph nodes. Tissue testing found 10 abnormal genes, but on the liquid biopsy only EGFR popped out as a good target. Two drugs aim at that gene but aren’t approved for her type of cancer. A tumor board advised trying both — Erbitux and Tarceva, the drug her husband also had taken. Within two weeks, she quit using pain medicines. After two months, her liver tumor had shrunk roughly by half. There are signs that cancer may remain, but it is under control. She feels well enough to travel and to take care of her granddaughter. “I’m very, very grateful to have a targeted therapy,” Cairnes said. “I cannot expect a better outcome than what we’re seeing right now,” said her doctor, Shumei Kato. WHAT STUDIES SHOW But is gene-guided treatment better than usual care? French doctors did the first big test, with disappointing results. About 200 patients with advanced cancer were given whatever their doctors thought best or off-label drugs based on tumor profiling. Survival was similar — about two months. Another French study, reported in June, was slightly more encouraging on survival but exposed another problem: No drugs exist for many gene flaws. Tests found treatable mutations in half of the 2,000 participants and only 143 got what a tumor board suggested. Some doctors worry that tumor boards’ recommending off-label treatments diverts patients from research that would benefit all cancer patients. For example, the American Society of Clinical Oncology’s TAPUR study tests off-label drugs and shares results with their makers and federal regulators. LETTING PATIENTS CHOOSE Ann Meffert, who lives on a dairy farm in Waunakee, Wisconsin, endured multiple standard treatments that didn’t defeat her bile duct cancer. “She was going to be referred to hospice; there was not much we could do,” said Dr. Nataliya Uboha, who took the case to a tumor board at the University of Wisconsin-Madison. The panel gave several options, including off-label treatment, and Meffert chose a study that matches patients to gene-targeting therapies and started on an experimental one last October. “Two weeks in, I started feeling better,” she said, and when she saw test results, “I couldn’t believe the difference.” Many lung spots disappeared and the liver tumor shrank 75 percent. She is not cured, though, and doctors are thinking about next steps. And that could involve a fresh look at her tumor genes. ___ Marilynn Marchione can be followed at @MMarchioneAP __ This Associated Press series was produced in partnership with the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content. Claim: Ultra-personal therapy: Gene tumor boards guide cancer care.
[A]: Doctors were just guessing a decade ago when they gave Alison Cairnes’ husband a new drug they hoped would shrink his lung tumors. Now she takes it, but the choice was no guesswork. Sophisticated gene tests suggested it would fight her gastric cancer, and they were right.


[Q]: Paragraph: Hyperemesis gravidarum is estimated to affect about one to three percent of pregnant women and can result in nausea and vomiting so acute that hospitalization is required. It is thought to be caused by pregnancy hormones, but doctors aren’t sure why some women experience worse symptoms than others. The condition usually begins in the early weeks of pregnancy and in many cases, subsides by about 20 weeks. But for some women, the effects may persist until the baby is born. The condition can be “absolutely devastating,” said Dr. Roger Gadsby of Warwick University, who has studied the issue for decades. “Your life is on hold while the symptoms are present,” he said, noting that some pregnant women may vomit dozens of times per day and be restricted to bed rest. Kensington Palace made the pregnancy announcement Monday, saying the duchess was not feeling well enough to attend an official engagement later in the day. Kate is being cared for at her Kensington Palace home in London. There was no word of when the baby is due. She and Prince William already have two children: Prince George, 4 and Princess Charlotte, 2. In 2012, Kate was hospitalized for several days when she was believed to be suffering from dehydration. There is no evidence that the nausea and vomiting from severe morning sickness will affect the baby’s future health. Women with the condition actually have a slightly lower risk of miscarriage, according to Britain’s Royal College of Obstetricians and Gynaecologists. In severe cases, however, babies can be born with lower than expected birthweight. Women with the condition are advised to eat small meals often, to avoid any foods or smells that trigger symptoms and to consult their midwife or doctor if their symptoms do not subside. If treatment requires hospitalization, women are typically given vitamins, steroids and anti-nausea drugs intravenously. Patients are also sometimes treated with shots of heparin, to thin their blood: pregnant women are at increased risk of developing blood clots in their legs, and being dehydrated further elevates the risk. Gadsby said he would expect doctors to be able to treat the duchess at Kensington Palace and that there shouldn’t be any lasting effects. She would likely have to cut back on her royal schedule, though. “As long as the mom receives adequate treatment, the mom is usually fine and the baby is fine,” he said. ___ This Associated Press series was produced in partnership with the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content. Claim: Science Says: Kate’s morning sickness brutal, not dangerous.
[A]: Prince William and his wife, the Duchess of Cambridge, are expecting their third child. And for the third time — as with her previous two pregnancies — the former Kate Middleton is suffering from hyperemesis gravidarum, or severe morning sickness.


[Q]: Paragraph: WTOP-FM reports that the Fairfax County Fire and Rescue Department is partnering with the National Fire Protection Association Research Foundation on a four-phase study. Part of the focus of the study will be on how chemicals can cling to breathing equipment used by firefighters. Firefighters are exposed to toxic chemicals released into the air by burning buildings and vehicles. According to a National Institute for Occupational Safety and Health study, firefighters are twice as likely to get skin and testicular cancer and mesothelioma. ___ Information from: WTOP-FM, http://www.wtop.com Claim: Firefighters study carcinogen exposure.
[A]:
Firefighters in Virginia are taking part in a study aimed at finding ways to reduce their exposure to carcinogens.