TI - THe influence of calcium and citric acid on blood coagulation PT - JOUR DP - 1909 TA - Journal of the American Medical Association pages = {778-779}, VI - LII IP - 10 AID - 10.1001/jama.1909.02540360034010 [doi] 4100 - http://dx.doi.org/10.1001/jama.1909.02540360034010 SO - Journal of the American Medical Association March 6, 1909 LII(10):778