Henry F, Quatresooz P, Valverde-Lopez JC, Piérard GE: Blood vessel changes during pregnancy: a review. Am J Clin Dermatol, 7:65-69, 2006.
Rader C, Piorkowski J, Bass DM, Babigian A: Epulis gravidarum manum: pyogenic granuloma of the hand occurring in pregnant women. J Hand Surg, 33A:263-265, 2008.
Calonje E: Pyogenic granuloma (Lobular capillary hemangioma). In: Elder DE, editor. Lever's Histopathology of the Skin. 10th ed. Philadelphia: Lippincott Williams & Wilkins, Pp. 1016-1019, 2009.
Piraccini BM, Bellavista S, Misciali C, Tosti A, de Berker D, Richert B: Periungual and subungual pyogenic granuloma. Br J Dermatol, 163:941-953, 2010.
Richert B: Frictional pyogenic granuloma of the nail bed. Dermatology, 202:80-81, 2001.