Accepted for Publication: January 27, 2013.
Published Online: September 19, 2013. doi:10.1001/jamafacial.2013.1211.
Acquisition of data: Li, Nahas, Feng.
Analysis and interpretation of data: Elisseeff, Boahene, Li, Nahas.
Drafting of the manuscript: Boahene, Feng, Li, Nahas.
Critical revision of the manuscript for important intellectual content: Elisseeff, Boahene, Li, Nahas.
Obtained funding: Elisseeff.
Study supervision: Elisseeff, Boahene.
Conflict of Interest Disclosures: None reported.
Additional Contributions: Bindi Naik, MD, of Baylor College of Medicine, provided keloid fibroblasts; Dr Boahene provided additional keloid fibroblasts enzymatically isolated from the dermal layer of lesions removed from consenting patients at The Johns Hopkins Hospital.