Streptococcus faecium Orla-Jensen 1919 (Approved Lists 1980) Enterococcus faecium (Orla-Jensen 1919) Schleifer and Kilpper-Bälz 1984 Schleifer K.H. Kilpper-Bälz R. Transfer of Streptococcus faecalis and Streptococcus faecium to the genus Enterococcus nom. rev. as Enterococcus faecalis comb. nov. and Enterococcus faecium comb. nov. 1984 34 1 31 34 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-34-1-31