TY  - RPRT
TI  - When should antibiotics be used in combination?
AU  - H F DOWLING
AU  - M H LEPPER
AU  - G G JACKSON
PY  - 1953
DO  - 10.1001/jama.1953.02940100031009
UR  - https://pubmed.ncbi.nlm.nih.gov/13022321/
ID  - 13022321
ER  -