Graf retired in July 1999, weeks after collecting a sixth French Open title with a win over Martina Hingis in the final. She remains second on the all-time grand slam winners' list, behind Australia's Margaret Court with 24.Agassi is favourite for the men's title after reaching the semi-finals yesterday with a 6-3, 6-2, 6-2 win over France's Sebastien Grosjean If he wins here it will be his eighth major.. The Belgium v America semi–final line–up at the Australian Open was completed today as Kim Clijsters and Serena Williams booked an enticing clash in the last four. It'll be a lot of fun so I'm very excited," said Serena."I saw a little bit of Kim's win.

She's playing really good tennis, especially at this tournament. It was great for my confidence to win in Sydney and it is great to be here in the semis," said Clijsters, who won four of her last five tournaments heading into the Australian Open.. Scientists have criticised a breast cancer charity for letting a wine company use the charity's name in an advertising campaign to promote the consumption of alcohol ­ a known risk factor in developing the disease. The Breast Cancer Campaign said money raised from such events would be used for research into the disease as well as raising public awareness of a cancer that killed 12,800 in the UK each year.Medical researchers said the tie-up between a cancer charity and Hardy was crass given that the overwhelming evidence of a link between alcohol and breast cancer first began to emerge five years ago and was confirmed in a study published in November.Tom Sanders, professor of nutrition and dietetics at King's College London, who is a government adviser on food and diet, said: "As alcohol intake is linked to increased risk of breast cancer, it is rather like putting an ad for a lung charity on cigarette packets. "It is extremely ill-advised of the breast cancer charity to get involved with a wine company, which is, after all, trying to promote the consumption of alcohol. It sends out a confusing message to women about the risks they run."Pamela Goldberg, chief executive of the Breast Cancer Campaign, denied that the tie-up could be compared to a deal with a tobacco company "It's not like smoking and lung cancer We know that smoking causes disease.

This is not a causal link, it's a slight increase in risk," she said. "The increase in risk of drinking a couple of glasses of wine a day is less than the increase in risk of not having a child. We are not going to go out and say to women, 'to reduce your risk of breast cancer you must have a child'," she said.Adrian McKeon, a director of Hardy, said: "When we started off the connection [with the charity] there was no concrete evidence for a link between alcohol and breast cancer.". Chlidren who smoke cannabis are up to five times more likely to progress to harder drugs than those who delay experimenting with marijuana until they are older, a study has found.

But an editorialsaid this did not mean that all young people who tried marijuana would become heroin or cocaine addicts.Researchers studied 311 pairs of twins of the same sex, where only one twin had used cannabis before 17. Twins share the same background and family experiences and identical twins share the same genetic risk.The study was conducted in Australia between 1996 and 2000, when the twins were aged 30 on average. The researchers took into account known risk factors such as early drinking or smoking (of tobacco), divorce, sex abuse or depression, and found they had little effect on the results. There was also no difference between fraternal and identical twins.The authors said the findings show drug use cannot be solely determined by genetic and/or shared environmental factors. Peer pressure and the social context in which cannabis use occurs may also be factors.