Differences in Co-Resistance to Ciprofloxacin and Penicillin Depending upon the Phenotype of Erythromycin Resistance in Streptococcus pneumoniae

1. García-Rey, C.
2. Aguilar, L.
3. Rubio-Calvo, M.C.
4. Nogueira, J.M.
5. García-Riestra, C.