AU - Strong LJ TI - Preparation of mediums: A new hydrogen-ion concentration method PT - JOUR DP - 1919 TA - Journal of the American Medical Association pages = {413}, VI - 72 IP - 6 AID - 10.1001/jama.1919.26110060003009c [doi] 4100 - http://dx.doi.org/10.1001/jama.1919.26110060003009c SO - Journal of the American Medical Association February 8, 1919 72(6):413