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+    struct3 [shape=record,label="hello\nworld\n\

+and  | { Thats the reason | post-menopausal | estrogen } | is\n\

+given together with another hormone called\n\

+progestin: The combination lowers the risk of\n\

+endometrial cancer.\n\

+\n\

+But the NTP advisers said putting all\n\

+estrogens on the federal list would help\n\

+women trying to balance the benefits and\n\

+risks when choosing hormone therapy.\n\

+Physicians never discuss any of these risks\n\

+when they are prescribing hormone therapy.\n\

+They only discuss benefits. Listing might\n\

+force it on the table, Michelle Medinsky, a\n\

+toxicologist from Durham, N.C., said before\n\

+the vote.\n\

+\n\

+The committee of scientists advises the NTP,\n\

+a branch of the National Institutes of Health\n\

+that every two years updates the federal list\n\

+of proven and suspected cancer-causing\n\

+substances.\n\

+\n\

+The NTP typically follows its advisers\n\

+recommendations, but an officially updated\n\

+carcinogen list isnt expected until 2002.\n\

+\n\

+Thursday, after a daylong debate, the panel\n\

+declined to add talc powder to the list,\n\

+saying there wasnt enough evidence linking\n\

+its use in feminine hygiene products to\n\

+ovarian cancer. The panel deadlocked over\n\

+whether to a second type of talc, fibrous\n\

+talc that some studies have linked to lung\n\

+cancer in talc miners.\n\

+\n\

+On Wednesday, the panel voted to add\n\

+ultraviolet radiation -- those\n\

+sunburn-causing rays long known to cause skin\n\

+cancer -- to the official carcinogen list.\n\

+\n\

+The panel on Friday continued debating an\n\

+association between cancers of the nose and\n\

+sinuses with industrial exposure to wood\n\

+dust.\n\

+\n\

+Talc has long been controversial. When\n\

+studies first appeared suggesting it migrated\n\

+into the ovaries to cause tumors, many\n\

+feminine hygiene products replaced talc with\n\

+cornstarch.\n\

+\n\

+Panelist Medinsky said she had been prepared\n\

+to list talc powder as reasonably believed\n\

+to cause cancer. But after listening to\n\

+hours of industry attacks on the science,\n\

+the evidence has knocked me out of the\n\

+reasonably category into not list, she\n\

+said before the panel voted 7-3 against\n\

+listing talc.\n\

+\n\

+Talc has long been controversial. When\n\

+studies first appeared suggesting it migrated\n\

+into the ovaries to cause tumors, many\n\

+feminine hygiene products replaced talc with\n\

+cornstarch.\n\

+\n\

+Panelist Medinsky said she had been prepared\n\

+to list talc powder as reasonably believed\n\

+to cause cancer. But after listening to\n\

+hours of industry attacks on the science,\n\

+the evidence has knocked me out of the\n\

+reasonably category into not list, she\n\

+said before the panel voted 7-3 against\n\

+listing talc.\n\

+\n\

+Talc in one form or the other can be found in\n\

+many papers, paints, ceramics, food wrappers,\n\

+hard candy, chewing gum, cosmetics and pills.\n\

+Most people are familiar with talc as a loose\n\

+powder used in cosmetics and as a drying\n\

+powder.\n\

+\n\

+Industry officials also attacked studies that\n\

+showed increased lung cancer in talc miners\n\

+in New York State and questioned an\n\

+experiment that showed that rats breathing\n\

+high concentrations of talc got lung cancer.\n\

+\n\

+Higher lung-cancer rates in talc miners may\n\

+have resulted from their smoking or from the\n\

+presence of radon gas in the mines or\n\

+asbestos in soils nearby, industry officials\n\

+said.\n\

+\n\

+The scientific advisers then deadlocked on\n\

+whether this second type of talc, fibrous\n\

+talc, caused lung cancer, voting 5-5 on\n\

+adding it to the carcinogen list.\n\

+\n\

+UV light, however, was a no-brainer for the\n\

+panel, which voted unanimously that it was a\n\

+known human carcinogen.\n\

+\n\

+UV radiation is not visible, but it is felt\n\

+as heat and can damage the eyes and skin. It\n\

+comes in three forms, ranging from the\n\

+relatively long-wavelength UVA to the\n\

+shortest wavelength UVC. UVA accounts for\n\

+most of the solar UV radiation because it is\n\

+not absorbed by the atmosphere. UVB is mostly\n\

+absorbed by the ozone layer and UVC is\n\

+totally absorbed.\n\

+\n\

+All three are produced by mercury arc sun\n\

+lamps, while other lamps that simulate\n\

+sunlight produce primarily UVA.\n\

+\n\

+SYDNEY, Australia (AP) -- Botanists have\n\

+found a stand of living fossil trees from\n\

+a species dating back to prehistoric times in\n\

+the dense rainforests north of Sydney,\n\

+authorities said Friday.\n\

+\n\

+About 20 mature trees found in the Nightcap\n\

+Range about 400 miles north of Sydney bear\n\

+nuts similar in structure to those discovered\n\

+in fossilized form in 1875 by botanist Baron\n\

+Ferdinand von Mueller.\n\

+\n\

+It gives us another small paragraph or a\n\

+page of the insight into the evolution of\n\

+flowering plants and the incredible changes                    \n\

+that have occurred on this continent through\n\

+enormous periods of time, said botanist\n\

+Peter Kooyman, who discovered the trees in\n\

+August.\n\

+\n\

+The exact location is being kept secret to\n\

+protect the trees, state environment minister\n\

+Bob Debus said.\n\

+\n\

+Kooyman sent details of his find to Sydneys\n\

+Royal Botanic Gardens, which identified the\n\

+rainforests which once covered the ancient \n\

+super-continent of Gondwanaland -- now\n\

+Australia, Africa, South America and New\n\

+Zealand, Debus said.\n\

+\n\

+The biggest of the newly discovered trees is\n\

+at least 120 feet tall and has beautiful,\n\

+primitive and messy flowers with a scent\n\

+similar to aniseed, Kooyman said.\n\

+\n\

+A similar discovery was made in the Blue\n\

+Mountains west of Sydney in 1994, when\n\

+botanists discovered a stand of living fossil\n\

+trees known as the Wollemi Pines.\n\

+\n\

+provocative Turkish  \n\

+study suggests that     \n\

+using honey as an      \n\

+ointment during a     \n\

+certain type of      \n\

+colon-cancer surgery\n\

+can help prevent tumors       \n\

+from recurring.              \n\

+\n\

+While the research was     \n\

+done in mice and no one   \n\

+expects hospitals t\n\

+start stocking    \n\

+operating rooms with    \n\

+honey jars, honey has  \n\

+been used as a folk   \n\

+remedy for healing   \n\

+since biblical times\n\

+\n\

+And a Mayo Clinic \n\

+cancer expert said the       \n\

+results, though             \n\

+preliminary, are too       \n\

+fascinating to be         \n\

+dismissed.               \n\

+\n\

+The research was aimed \n\

+at improving the safety   \n\

+of laparoscopic          \n\

+surgery, an\n\

+increasingly popular technique that involves\n\

+tiny keyhole incisions and skinny\n\

+instruments.\n\

+\n\

+Enthusiasm for the technique has been\n\

+tempered by some reports that laparoscopy for\n\

+colon cancer can itself cause tumors to\n\

+develop in the abdominal wall, along the path\n\

+the surgical instruments took.\n\

+\n\

+The Turkish researchers suggest honey might\n\

+work as a barrier to tumor cells when it is\n\

+spread in the incisions. The findings, based\n\

+on a study of 60 mice, were published in\n\

+Decembers issue of the Archives of Surgery.\n\

+\n\

+Dr. Tonia Young-Fadok, a Mayo Clinic surgeon\n\

+participating in a U.S. study on whether\n\

+laparoscopic surgery for colon cancer can\n\

+cause new tumors, said substances in honey\n\

+might actually help dissolve tumor cells.\n\

+\n\

+Its not clear what the power of honey is,\n\

+but theres certainly something here thats\n\

+of interest, Young-Fadok said.\n\

+\n\

+Laparoscopies are being used increasingly to\n\

+treat a variety of conditions that formerly\n\

+required major operations. Skinny instruments\n\

+and a slender viewing tube called a\n\

+laparoscope are inserted through tiny\n\

+incisions. Carbon dioxide gas is injected\n\

+into the body cavity to cause the abdomen to\n\

+swell, creating a work space for surgeons.\n\

+\n\

+Colon tumors are essentially the only type of\n\

+cancer for which doctors use laparoscopy.\n\

+\n\

+Some theorize that the gas might cause cancer\n\

+cells to shift location and form tumors.\n\

+Others suggest that inexperienced surgeons\n\

+might inadvertently cause malignant cells to\n\

+implant as they extract the tumor.\n\

+\n\

+Young-Fadok said some research has found that\n\

+tumors occur in less than 1 percent of cases\n\

+and that when the laparoscopy is done by\n\

+experienced surgeons, the risk is essentially\n\

+zero.\n\

+\n\

+In the Turkish study, led by Dr. Ismail\n\

+Hamzaoglu of Istanbul University, researchers\n\

+injected the mice with air, made neck\n\

+incisions and injected the animals with tumor\n\

+cells. The researchers spread honey inside\n\

+the incisions in one group of mice before and\n\

+after the injections.\n\

+\n\

+All 30 mice without honey developed tumors,\n\

+compared with only eight of the 30\n\

+honey-treated mice.\n\

+\n\

+In a commentary accompanying the study,\n\

+Chicago plastic surgeon Dr. Thomas Mustoe\n\

+noted that other research has suggested honey\n\

+has anti-bacterial properties and may be an\n\

+effective treatment for burns.\n\

+\n\

+The study highlights another potential\n\

+use, Mustoe said.\n\

+abde\

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