| The submission also failed to provide long-term efficacy data on patients with actinic keratosis lesions treated with Metivix. |
| The lesion preparation, cream application, and illumination procedures were similar to the actinic keratosis studies described above. |
| Interbreeding 50,000 years ago between two species of human may also have bequeathed a sunburn hazard called keratosis, addiction to nicotine, and a greater risk of depression. |
| Retin-A is the acid form of vitamin A commonly applied to treat acne vulgaris and keratosis pilaris. |
| The development of actinic keratosis or malignant melanomas are among the possible serious consequences. |
| Actinic keratosis lesions usually measure less than one-quarter inch in diameter and more than 80 per cent of lesions occur on the upper limbs, head and neck. |
