1. Department of Dermatology; Stanford University School of Medicine; 450 Broadway Street, Pavilion C, 2nd Floor MC 5334; Redwood City; CA; 94063; U.S.A
2. Department of Biostatistics; Stanford University School of Medicine; Redwood Building; 150 Governor's Lane; Stanford; CA; 94305; U.S.A
3. Department of Medicine and Oncology; Stanford University School of Medicine; 875 Blake Wilbur Drive, MC 5826; Stanford; CA; 94305; U.S.A