Time evolution of field cancerization in skin after PDT treatment using nanoencapsulated ALA - Karst-Passos, S.; Soares, P. Passos; Eid, D. R. M.; Primo, F. L.; Tedesco, Antonio Claudio; Morais, P. C.; Souza, P. E. N. de; Lacava, Z. G. M. (International Conference on Surfaces, Coatings and Nano-Structured Materials (NANOSMAT), 2011)