Increasing penicillin resistance in pneumococci in Iceland.
K G
KG
Kristinsson
M A
MA
Hjálmarsdóttir
O
O
Steingrímsson
D006801:Humans; D007055:Iceland; D008826:Microbial Sensitivity Tests; D010403:Penicillin Resistance; D013296:Streptococcus pneumoniae / Q000187:drug effects*