Hb: Hemoglobin, PT: Prothrombin time, PTT: Partial thromboplastin time, CRP: C-reactive protein, ESR: Erythrocyte sedimentation rate, MRSA: Methicillin-resistant Staphylococcus aureus, CRMO: Chronic recurrent multifocal osteomyelitis, NSAIDs: Non-steroidal anti-inflammatory drugs. The gene discussed is GSTM1; the disease is chronic recurrent multifocal osteomyelitis.