Hemodialysis without Systemic Anticoagulation: A Randomized Controlled Trial to Evaluate Five Strategies in Patients at a High Risk of Bleeding oleh Pedro H. Franca Gois, David McIntyre, Sharad Ratanjee, Anita Pelecanos, Carla Scuderi, Chungun L. Janoschka, Kara Summers, Haibing Wu, Belinda Elford, Dwarakanathan Ranganathan, Helen G. Healy