1. Department of Dermatology and Radiotherapy; Botucatu Medical School; Sao Paulo State University - Unesp; Botucatu Sao Paulo Brazil
2. Department of Internal Medicine; Botucatu Medical School; Sao Paulo State University - Unesp; Botucatu Sao Paulo Brazil
3. Department of Biostatistics; Institute of Bioscience; Sao Paulo State University - Unesp; Botucatu Sao Paulo Brazil