A three-year prospective study of the presentation and clinical outcomes of major bleeding episodes associated with oral anticoagulant use in the UK (ORANGE study) oleh Laura Green, Joachim Tan, Joan K Morris, Raza Alikhan, Nicola Curry, Tamara Everington, Rhona Maclean, Khalid Saja, Simon Stanworth, Campbell Tait, Peter MacCallum