The rise and fall of pneumonia-control programs.
D006801:Humans; D007106:Immune Sera; D007116:Immunization, Passive; D011008:Pneumococcal Infections / Q000517:prevention & control*; D011014:Pneumonia / Q000517:prevention & control*; D012041:Regional Medical Programs; D012703:Serotyping; D013296:Streptococcus pneumoniae / Q000276:immunology; D013449:Sulfonamides / Q000627:therapeutic use; D014481:United States
D007106:Immune Sera; D013449:Sulfonamides