21.   The strategy might also be used to combat hepatitis A infections, the most common form of the liver disease, after they are first diagnosed, Dasgupta said.

22.   They will explain how the endangered Yew tree from the Pacific Northwest is being used to combat ovarian cancer.

23.   This time, tamoxifen will be measured against raloxifene, a medication already used to combat osteoporosis, the thinning and weakening of bones.

24.   AIDS sufferers and activists in Singapore Sunday called for the government of this wealthy island nation to subsidize the drugs used to combat the disease.

25.   Brazil is also worried that any defoliants used to combat Colombian drug production could damage its rain forest, a Brazilian Foreign Ministry official said Thursday in Sao Paulo.

26.   He has a powerful strain of TB that is resistant to drugs normally used to combat the disease.

27.   Serostim is used to combat the deterioration of the body due to AIDS.

28.   The technique could also be used to combat jet lag, he said.

29.   A game played with a bat, a sculpted piece of wood used to combat a solid ball made of cork, string and leather seems simple enough.

30.   Their technique was used in Japan to eradicate the melon fruit fly, and has been used to combat other pests.