p. 1-15; Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-02-27T13:03:23Z No. of bitstreams: 1 journal.pone.0018551.pdf: 410957 bytes, checksum: 9150a5f0fbe637d4f1197a80e401c8d2 (MD5); Made available in DSpace on 2012-02-27T13:03:23Z (GMT). No. of bitstreams: 1 journal.pone.0018551.pdf: 410957 bytes, checksum: 9150a5f0fbe637d4f1197a80e401c8d2 (MD5) Previous issue date: 2011; Background: Coryneb...