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The "mixed" vaccines which are discussed in the reports Case 1.-Vaccine case-improvement after eight months. Case 2.-Slight improvement following use of vaccine. Case S.-Slight improvement following use of vaccine. Case 4.-Marked improvement. Case 5.-Prompt improvement. Case 6.-Vaccine not mentioned. Case 7.-Vaccine followed by slight improvement.doi:10.1001/jama.1918.02600250067019 fatcat:l3tjvf7ekjh2tj4sf436ioncnq