SBP: systolic blood pressure; DBP: diastolic blood pressure; MBP: mean blood pressure; MCH: mean corpuscular hemoglobin; MCHC: mean corpuscular hemoglobin concentration; MCV: mean corpuscular volume; WBC: white blood cells; PT: prothrombin time; PTT: partial thromboplastin time; BUN: blood urea nitrogen; COPD: chronic obstructive pulmonary disease. The gene discussed is F2; the disease is chronic obstructive pulmonary disease.