title: Editorial: Penicillin-resistant pneumococci and pneumonia.
mesh_terms: D006801:Humans; D009512:New Guinea; D010400:Penicillin G / Q000008:administration & dosage* / Q000627:therapeutic use; D010403:Penicillin Resistance; D011008:Pneumococcal Infections / Q000382:microbiology*; D011014:Pneumonia / Q000517:prevention & control*; D013296:Streptococcus pneumoniae / Q000302:isolation & purification*
chemical_list: D010400:Penicillin G