1. Addo HA, Frain-Bell W (1984) Actinic prurigo — a specific photodermatosis? Photodermatol 1: 119 – 128
2. Birt AR, Hogg GR (1979) The actinic cheilitis of hereditary polymorphic light eruption. Arch Dermatol 115:699 - 702
3. Brandt R (1958) Dermatological observations on the Navaho reservation. Arch Dermatol 77: 581 – 585
4. Calderon CI (1959) Dermatopathias solares y algunes investigaciones de sus aspectos epidemiologicas, clinico y de laboratorio. Universidad de Mexico, Mexico D.F.
5. Cluckhorn C, Leighton D (1974) The past of the people. In: Cluckhorn C, Leighton D (eds) The Navaho. Harvard University Press, Boston, pp 33 – 44