PT - JOURNAL ARTICLE ED - British Journal of General Practice TI - Blood coagulation simplified DP - 1971 Sep 01 TA - The Journal of the Royal College of General Practitioners PG - 553--554 VI - 21 IP - 110 4099 - http://bjgp.org/content/21/110/553.2.short 4100 - http://bjgp.org/content/21/110/553.2.full SO - J R Coll Gen Pract1971 Sep 01; 21