[1] Positivo Univ, Dept Med, Curitiba, Parana, Brazil
[2] Clin Olyntho Oftalmo Ctr, Sao Jose Do Rio Preto, Brazil
[3] Univ Fed Santa Catarina, Florianopolis, SC, Brazil
[4] Univ Fed Mato Grosso, Campo Grande, MS, Brazil
[5] Fac Ciencias Med Santa Casa Sao Paulo, Sao Paulo, Brazil
[6] Serra dos Orgaos Univ Ctr, Teresopolis, RJ, Brazil
[7] Estacio de Sa Univ, Rio De Janeiro, Brazil
[8] Hosp Cristo Redentor, Porto Alegre, RS, Brazil
[9] Univ Alabama Birmingham, Birmingham, AL USA