Morris, Daniel C Thrombolysis 3 to 4.5 hours after acute ischemic stroke. [electronic resource] - The New England journal of medicine Dec 2008 - 2841; author reply 2841 p. digital Publication Type: Comment; Letter ISSN: 1533-4406 Subjects--Topical Terms: Brain Ischemia--drug therapyFibrinolytic Agents--administration & dosageHumansStroke--drug therapyThrombolytic TherapyTime FactorsTissue Plasminogen Activator--administration & dosage