TY  - RPRT
TI  - Penicillin-resistant pneumococci.
AU  - N Manek
PY  - 1991
DO  - 10.1016/0195-6701(91)90107-j
UR  - https://pubmed.ncbi.nlm.nih.gov/1684607/
ID  - 1684607
ER  -