31. Four more lesions were taken off in December; two of those, on his cheeks, were of the precancerous actinic kind. 32. The potentially cancer-causing skin lesions, a common condition known as actinic keratoses, are caused by exposure to the sun. 33. Darkened brown or amber ( actinic ) glass, which is common in dark storage bottles, can block ultraviolet and infrared radiation. 34. Some of this may be caused by actinic keratosis, which occurs due to overexposure to sun or with age and hormonal shifts. 35. It may also help with actinic keratosis, and acute pain caused by minor strains, sprains, and contusions ( bruises ). 36. An actinic keratosis lesion commonly ranges between 2 and 6 millimeters in size but can grow to be a few centimeters in diameter. 37. The phototool is placed over the photo-resist layer and irradiated with actinic radiation, such as ultraviolet ( UV ) light. 38. The two lesions on his cheek are actinic keratoses, a common ailment in people Bush's age that can develop into cancer. 39. Typically, light from xenon flash lamps is highly actinic , as is daylight as both contain significant green-to-UV light. 40. Duignan urged the Actinic Company to make its national debut by publishing the first photo-engraved copy of the American Declaration of Independence.
