title: When coexisting conditions confuse the issue.
mesh_terms: D000368:Aged; D001799:Blood Sedimentation; D003937:Diagnosis, Differential; D004698:Endocarditis, Subacute Bacterial / Q000150:complications* / Q000175:diagnosis / Q000382:microbiology; D006349:Heart Valve Diseases / Q000382:microbiology; D006801:Humans; D007958:Leukocyte Count; D008297:Male; D009504:Neutrophils / Q000032:analysis; D013291:Streptococcus / Q000302:isolation & purification; D013444:Sulfisoxazole / Q000627:therapeutic use; D014552:Urinary Tract Infections / Q000150:complications* / Q000188:drug therapy
chemical_list: D013444:Sulfisoxazole