@misc{indiciae6654d321e9c0, title = {An agar-diffusion grouping technic for beta hemolytic streptococi.}, author = {L J LANCASTER and J C SHERRIS}, year = {1960}, doi = {10.1093/ajcp/34.2.131}, url = {https://pubmed.ncbi.nlm.nih.gov/14413743/}, note = {Source identifier: 14413743} }