PT - JOURNAL ARTICLE AU - Hoffman, George C. AU - Snyder, Ann TI - The Ground - Glass Clotting Time DP - 1966 Jul 01 TA - Cleveland Clinic Journal of Medicine PG - 107--113 VI - 33 IP - 3 4099 - http://www.ccjm.org/content/33/3/107.short 4100 - http://www.ccjm.org/content/33/3/107.full SO - Cleve Clin J Med1966 Jul 01; 33