PLAT and venous thromboembolism: TEG: thromboelastography; TEG-MA: TEG with maximum amplitude; rTEG; rapid thromboelastography; tPA-TEG: tissue plasminogen activator; TEG-PM: TEG with platelet mapping; TBI: traumatic brain injury; VTE: venous thromboembolism; ROTEM: rotational thromboelastometry; MTP: massive transfusion protocol