TY  - JOUR 
T1  - Nasopharyngeal colonization and penicillin resistance among pneumococcal strains: a Worldwide 2004 update
JO  - Brazilian Journal of Infectious Diseases
A1  - Cardozo, Déa M.
A1  - Nascimento-Carvalho, Cristiana M. C.
A1  - Souza, Fabiane R.
A1  - Silva, Nívea M. S.
SN  - 1413-8670
UL  - 10.1590/S1413-86702006000400015
VL  - 10 
Y1  - 2006
PB  - Brasil 
ER  -