Accepted for Publication: October 27, 2014.
Published Online: February 4, 2015. doi:10.1001/jamadermatol.2014.4115.
Study concept and design: Carrera, Puig-Butillè, Badenas, Puig, Malvehy.
Acquisition, analysis, or interpretation of data: Carrera, Puig-Butillè, Tell, García, Badenas, Alós, Malvehy.
Drafting of the manuscript: Carrera, Puig-Butillé, Tell, Puig, Malvehy.
Critical revision of the manuscript for important intellectual content: Carrera, García, Badenas, Alós, Malvehy.
Statistical analysis: Carrera.
Obtained funding: Puig, Malvehy.
Administrative, technical or material support: Carrera, Puig-Butillè, García, Alós, Puig, Malvehy.
Study supervision: Carrera, Puig-Butillè, Badenas, Puig, Malvehy.
Conflict of Interest Disclosures: None reported.
Funding/Support: The research at the Melanoma Unit is partially funded by grants P.I. 09/01393 and P.I. 12/00840 from Fondo de Investigaciones Sanitarias, by the Centro de Investigación Biomédica en Red en Enfermedades Raras of the Instituto de Salud Carlos III, by grant 2009 SGR 1337 from the Agència de Gestió d'Ajuts Universitaris i de Recerca of the Catalan government, and by contract LSHC-CT-2006-018702 (The Melanomas Genetics Consortium) from the European Commission under the Sixth Framework Programme.
Role of the Funder/Sponsor: The funding sources had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and the decision to submit the manuscript for publication.
Additional Contributions: Paul Hetherington helped edit and revise the manuscript and was not compensated for his contributions. We are indebted to all the members of the Melanoma Unit, Department of Dermatology, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain.