Professor and Founding Chairman for the Department of Dermatology at the Zucker School of Medicine at Hofstra Northwell in New York City, USA        
     
                                                    
    
        
        
        
            Chair in dermatology and population science, St John’s Institute of Dermatology, King’s college London, UK        
     
                                                    
    
        
        
        
            Associate Professor Department of Dermatology, Universitary Hospital Germans Trias I Pujol, Badalona, Spain