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A Violaceous Nodule on the Knee—Diagnosis

Arch Dermatol. 2009;145(6):715-720. doi:10.1001/archdermatol.2009.111-b.
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Dinh  VFeun  LElgart  GSavaraj  N Merkel cell carcinomas. Hematol Oncol Clin North Am 2007;21 (3) 527- 544, ix
PubMed Link to Article[[XSLOpenURL/10.1016/j.hoc.2007.04.008]]
Popp  SWaltering  SHerbst  CMoll  IBoukamp  P UV-B-type mutations and chromosomal imbalances indicate common pathways for the development of Merkel and skin squamous cell carcinomas. Int J Cancer 2002;99 (3) 352- 360
PubMed Link to Article[[XSLOpenURL/10.1002/(ISSN)1097-0215]]
Engels  EAFrisch  MGoedert  JJBiggar  RJMiller  RW Merkel cell carcinoma and HIV infection. Lancet 2002;359 (9305) 497- 498
PubMed Link to Article[[XSLOpenURL/10.1016/S0140-6736(02)07668-7]]
Gooptu  CWoollons  ARoss  J  et al.  Merkel cell carcinoma arising after therapeutic immunosuppression. Br J Dermatol 1997;137 (4) 637- 641
PubMed Link to Article[[XSLOpenURL/10.1111/bjd.1997.137.issue-4]]
Feng  HShuda  MChang  YMoore  PS Clonal integration of a polyomavirus in human Merkel cell carcinoma. Science 2008;319 (5866) 1096- 1100
PubMed Link to Article[[XSLOpenURL/10.1126/science.1152586]]
Pectasides  DPectasides  MEconomopoulos  T Merkel cell cancer of the skin. Ann Oncol 2006;17 (10) 1489- 1495
PubMed Link to Article[[XSLOpenURL/10.1093/annonc/mdl050]]
Allen  PJBowne  WBJaques  DPBrennan  MFBusam  KCoit  DG Merkel cell carcinoma: prognosis and treatment of patients from a single institution. J Clin Oncol 2005;23 (10) 2300- 2309
PubMed Link to Article[[XSLOpenURL/10.1200/JCO.2005.02.329]]
Tai  P Merkel cell cancer: update on biology and treatment. Curr Opin Oncol 2008;20 (2) 196- 200
PubMed Link to Article[[XSLOpenURL/10.1097/CCO.0b013e3282f46d5d]]
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