TY - RPRT TI - Screening pneumococci for penicillin resistance. AU - J M Swenson AU - B C Hill AU - C Thornsberry PY - 1986 DO - 10.1128/jcm.24.5.749-752.1986 UR - https://pubmed.ncbi.nlm.nih.gov/3095370/ ID - 3095370 ER -