"small RNA" . "Qrr sRNAs" . . "sRNA" . "bacterial small non-coding RNA" . "sRNAs" . . "bacterial small non-coding RNAs" . "small non-coding RNA" . "bacterial small RNA" . "bacterial small noncoding RNA" . . "Bacterial small RNA" . "small RNAs" . . "small non coding RNAs" . "small regulatory RNAs" . . "Bacterial small RNA" .