Szczepańska-Szerej A, Wojtan M, Szajnoga B. The international normalized ratio (INR) as seen in a population of patients with atrial fibrillation and cerebral infarction undergoing long-term treatment with vitamin K antagonists. Curr. Issues Pharm. Med. Sci. 2015;28(4):269-272. doi:10.1515/cipms-2015-0087