Referencias 

1. World Health Organization. European study investigating the overall impact of psoriasis 2016. Disponible en https://apps.who.int/iris/bitstream/handle/10665/204417/9789241565189_eng.pdf.psoriasis;jsessionid= 54912784D28C9F36ECCD45471AC5775B?sequence=1; Accedido en noviembre 2019.
2. Van Voorhees, The psoriasis and psoriatic arthritis pocket guide: treatment algorithms and management options. 4th ed. National Psoriasis Foundation. 2017. Disponible en: https://www.psoriasis.org/sites/default/files/accessing-health-care/FY10_Pocket_Guide_WEB.pdf Accedido en noviembre 2019.
3. Ferrándiz C. Prevalencia de la psoriasis en España en la era de los agentes biológicos. Actas Dermo-sifiliográficas. 2014;105(5):504
4. Langham S, Langham J, Goertz H-P, Ratcliffe M. Large-scale, prospective, observational studies in patients with psoriasis and psoriatic arthritis: A systematic and critical review. BMC Med Res Methodol. 2011;11(1):32. doi:10.1186/1471-2288-11-32.
5. Gladman DD. Psoriatic arthritis. Dermatol Ther. 22(1):40-55.
6. Angelillo MP. Psoriatic Arthritis. In: All About Arthritis. Vol iUniverse; 2009:40-45. https://books.google.com/books?id=_Gch5mIlSsYC&pgis=1. Accessed May 25, 2016.
7. Jemec GBE. Hidradenitis Suppurativa. N Engl J Med. 2012:366:158-164.
8. Dufour DN, Emtestam L, Jemec GB. Hidradenitis Suppurativa: A Common and Burdensome, Yet Under-Recognised, Inflammatory Skin Disease. Postgrad Med J. 2014; 90 (1062):216-21.
9. Esmann S, Jemec GB. Psychosocial impact of hidradenitis suppurativa: a qualitative study. Acta dermato-venereologica. 2011;91(3):328-332.
10. Williams HC et AL. 1994
11. Yosipovitch G, Papoiu ADJCa, reports a. What causes itch in atopic dermatitis? 2008;8(4):306-311
12. Atopic Dermatits: the skin barrier and beyond, T. Tsakok et al. 2019
13. J. Sánchez-Pérez 2013. Estudio PSEDA
14. Severe Atopic Dermatitis In Spain: A Real-Life Observational Study, Sicras-Mainar et al, 2019