@misc{indiciae662143fd271b, title = {Extrachromosomal elements in group N streptococci.}, author = {B R Cords and L L McKay and P Guerry}, year = {1974}, doi = {10.1128/jb.117.3.1149-1152.1974}, url = {https://pubmed.ncbi.nlm.nih.gov/4205191/}, note = {Source identifier: 4205191} }