PT - JOURNAL ARTICLE AU - Smith, A G TI - Guidelines on oral anticoagulation: second edition. AID - 10.1136/jcp.44.1.86-a DP - 1991 Jan 01 TA - Journal of Clinical Pathology PG - 86 VI - 44 IP - 1 4099 - http://jcp.bmj.com/content/44/1/86.1.short 4100 - http://jcp.bmj.com/content/44/1/86.1.full SO - J Clin Pathol1991 Jan 01; 44