title: Trial of pneumococcal vaccine for asplenic patients.
mesh_terms: D000328:Adult; D001428:Bacterial Vaccines / Q000627:therapeutic use*; D006801:Humans; D010406:Penicillins / Q000627:therapeutic use; D011182:Postoperative Care; D013156:Splenectomy; D013296:Streptococcus pneumoniae / Q000276:immunology*
chemical_list: D001428:Bacterial Vaccines; D010406:Penicillins