31. Of 768 women who got vaccine injections, none showed Type 16 infections or precancerous tissue. 32. They gave patients a chemical compound that highlights cancerous and precancerous cells under a special lamp. 33. Some skin lesions can be precancerous , while others are harmless growths that develop with age. 34. They applied folic acid, selenium, and tretinoin to induce differentiation of gastric precancerous lesions. 35. Her husband, Webb, just began participating in it, after doctors detected a precancerous polyp. 36. The development of cervical cancer can be traced through its precancerous stages by regular Pap smear screening. 37. And in those first few months he'd already found three cancers and several precancerous lesions. 38. In theory, at least, the crippled virus will enter these precancerous cells and kill them. 39. It does not hunt for actual tumors but can detect abnormal cells that may signal precancerous changes. 40. The genetic alterations in several other types of pancreatic cancer and precancerous lesions have also been researched.
