Letter of apology and notice of retraction.
Retraction of: Yazdan, P. Sem Cutan Med Surg. 2012 Dec;31(4):258-266 PMID: 21605090 [PubMed - indexed for MEDLINE].
Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.
Pedram
P
Yazdan