eighteen patients ( 13 under mechanical ventilation ) in an intensive care unit received piperacillin for pneumonia ( 7 cases ) or bronchial infection ( 11 cases ) , related to haemophilus influenzae ( 7 ) , streptococcus pneumoniae ( 4 ) or miscellaneous pathogens ( 7 ) including staphylococcus , e. coli , klebsiella pneumoniae and proteus mirabilis .
C0031955
piperacillin
C0032285
pneumonia