1 Department of Dermatology and Cutaneous Biology, Jefferson Institute of Molecular Medicine, Sidney Kimmel Medical College, and PXE International Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, Pennsylvania. Electronic address: Jouni.Uitto@jefferson.edu.
2 Department of Dermatology and Cutaneous Biology, Jefferson Institute of Molecular Medicine, Sidney Kimmel Medical College, and PXE International Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, Pennsylvania.