1. Validity of British system for anticoagulant control using national reagents;Alderson, M.R.; Poller, L.; Thomson, J.M.;J Clin Pathol,1970
2. The British system of anticoagulant control;Poller, L.;Thromb Haemost,1975
3. Expert Committee on Biological Standardisation. Requirements of thromboplastins and plasma used to control oral anticoagulant therapy;World Health Organisation,1983
4. Standardisation of oral anticoagulant treatment;Shinton, N.K.;Br Med J,1983
5. Questions and answers on prothrombin time standardisation in oral anticoagulant control;Loeliger, E.A.; Poller, L.; Samama, M.;Thromb Haemost,1985