1. Jacobs JWG, Fritsch-Stork RDE. Knuckle pads. Medisch Contact 2010;65:870.
2. Mikkelsen OA. Knuckle pads in Dupuytren’s disease Hand. 1977;9:301–5.
3. Caroli A, Zanasi S, Marcuzzi A, Guerra D, Cristiani G, Ronchetti IP. Epidemiological and structural findings supporting the fibromatous origin of dorsal knuckle pads. J Hand Surg Br. 1991;16:258–62.
4. Saylam Kurtipek G, Kutlu O, Duran C, Kurku H, Ataseven A, Tuncez Akyurek F. Frequency of metabolic syndrome in patients with knuckle pads. J Dermatol. 2015;42:1165–8.
5. Hyman CH, Cohen PR. Report of a family with idiopathic knuckle pads and review of idiopathic and disease-associated knuckle pads. Dermatol Online J. 2013;19:18177.