1. Nail Diseases Center; Cannes France
2. Department of Dermatology/Dermatopathology; University of California; San Francisco CA USA
3. Department of Dermatopathology; Palo Alto Medical Foundation; Palo Alto CA USA
4. (Retired); Manhasset NY USA
5. Department of Dermatology; Centre Hospitalier Lyon Sud; Pierre Benite Cedex France