title: Polymicrobal pneumonia in a corticosteroid-treated patient with chronic obstructive lung disease.
mesh_terms: D000368:Aged; D003454:Cryptococcus / Q000302:isolation & purification; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications / Q000188:drug therapy*; D008297:Male; D008775:Methylprednisolone / Q000009:adverse effects*; D011010:Pneumocystis / Q000302:isolation & purification; D011014:Pneumonia / Q000209:etiology* / Q000382:microbiology; D011550:Pseudomonas aeruginosa / Q000302:isolation & purification
chemical_list: D008775:Methylprednisolone