Table 1.

Formation of Our Database

Species	Strains (n)	Spectra (n) *
Escherichia coli	19	148
Klebsiella pneumoniae	19	136
Klebsiella oxytoca	10	80
Enterobacter cloacae	19	146
Enterobacter aerogenes	9	72
Proteus mirabilis	20	152
Proteus vulgaris	10	78
Salmonella Enteritidis	10	80
Salmonella Typhimurium	10	80
Serratia marcescens	10	80
Shigella sonnei	9	71
Yersinia enterocolitica	9	70
Citrobacter freundii	10	77
Morganella morganii	8	57
Acinetobacter baumanii	10	80
Pseudomonas aeruginosa	37	219
Total	219	1626

^*Multiple spectra from a total of four specimens per each single strain were acquired at two distinct dates to check reproducibility and taking strain and recording specific variations into account.