Breathnach,A. S.(1982).“A long-term hypopigmentary effect of thorium-X on freckled skin”.British Journal of Dermatology106(1): 19–25.doi:10.1111/j.1365-2133.1982.tb00897.x.PMID7059501."The distribution of freckles seems entirely random, and not associated with any other obviously punctuate anatomical or physiological feature of skin."
Breathnach,A. S.(1982).“A long-term hypopigmentary effect of thorium-X on freckled skin”.British Journal of Dermatology106(1): 19–25.doi:10.1111/j.1365-2133.1982.tb00897.x.PMID7059501."The distribution of freckles seems entirely random, and not associated with any other obviously punctuate anatomical or physiological feature of skin."