1. Bologna JL, Schaffer JV, Duncan KO, Ko KJ. Dermatology essentials. Oxford: Saunders/Elsevier; 2014.
2. Ferri FF. In: Ferri FF, editor. Ferri's fast Facts in dermatology: a practical guide to skin diseases and disorders. Amsterdam: Saunders Elsevier; 2011.
3. Plewig G, French LE, Ruzicka T, Kaufmann R, Hertl M. Braun-Falco's dermatology. Berlin, Heidelberg: Springer; 2019.
4. Wolff K, Johnson RA, Fitzpatrick TB. Fitzpatrick's color atlas and synopsis of clinical dermatology. New York: McGraw Hill/Medical; 2009.
5. Linton CP. Describing the distribution of skin lesions. J Dermatol Nurses Assoc. 2012;4(1):62–3.