TY  - RPRT
TI  - Rational choice of penicillins and cephalosporins based on parallel in-vitro and in-vivo tests.
AU  - S Selwyn
PY  - 1976
DO  - 10.1016/s0140-6736(76)90679-6
UR  - https://pubmed.ncbi.nlm.nih.gov/61353/
ID  - 61353
ER  -