“…5 In contrast to the hair damage observed by us and by Symann about ten years after x-ray epilation, Thorne and Grange found no evidence of hair damage five years after x-ray epilation when they examined 120 patients of a total population of 365. 8 The x-ray energy and air dose of 400 roentgen (R) and 75 kilovolt (peak) (kvp) received by Thorne and Grange's cases differed from the 365 Rand 100 kvp used at this Institution. The x-ray characteristics used for Symann's cases were unspecified.…”