PT - JOURNAL ARTICLE ED - , TI - Guidelines on oral anticoagulation: second edition. British Society for Haematology. British Committee for Standards in Haematology. Haemostasis and Thrombosis Task Force. AID - 10.1136/jcp.43.3.177 DP - 1990 Mar 01 TA - Journal of Clinical Pathology PG - 177--183 VI - 43 IP - 3 4099 - http://jcp.bmj.com/content/43/3/177.short 4100 - http://jcp.bmj.com/content/43/3/177.full SO - J Clin Pathol1990 Mar 01; 43