No abstract available
Publication types
-
Letter
-
Multicenter Study
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Cephalosporins / pharmacology*
-
Drug Resistance, Bacterial / genetics*
-
Humans
-
Penicillins / pharmacology*
-
Pneumococcal Infections / epidemiology
-
Pneumococcal Infections / microbiology
-
Portugal / epidemiology
-
Streptococcus pneumoniae / drug effects*
-
Streptococcus pneumoniae / isolation & purification
Substances
-
Cephalosporins
-
Penicillins