Fig. 1. Graphic description of the relation between chest tube drainage (milliliters), displayed as bars; platelet count (× 1,000/μl), displayed as circles; activated partial thromboplastin time (seconds), displayed as triangles; and administration of hemostatic blood products: platelet concentrates ( white arrows ) and fresh frozen plasma ( thin black arrows ) perioperatively. P = preoperatively; OR = intraoperatively.