1. Gudjonsson JE, Karason A, Runarsdottir EH, Antonsdottir AA, Hauksson VB, Jónsson HH, et al. Distinct clinical differences between HLA-Cw*0602 positive and negative psoriasis patients: an analysis of 1019 HLA-C- and HLA-B-typed patients. J Invest Dermatol. 2006;126(4):740–5.
2. Dogra S, Yadav S. Psoriasis in India: prevalence and pattern. Indian J Dermatol Venereol Leprol. 2010;76(6):595–601.
3. Reich K. Approach to managing patients with nail psoriasis. J Eur Acad Dermatol Venereol. 2009;23(Suppl 1):15–21.
4. Williamson L, Dalbeth N, Dockerty JL, Gee BC, Weatherall R, Wordsworth BP. Extended report: nail disease in psoriatic arthritis: clinically important, potentially treatable, and often overlooked. Rheumatology. 2004;43(6):790–4.
5. De Berker D. Management of nail psoriasis. Clin Exp Dermatol. 2000;25(5):357–62.