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January 29, 1910


JAMA. 1910;LIV(5):378. doi:10.1001/jama.1910.02550310046003

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The study of the viscosity of the blood, though recent, has reached such proportions as to merit more than passing attention, not only from those interested in scientific progress, but from the clinician as well. The enumeration of the corpuscles and the estimation of hemoglobin have yielded invaluable data; the study of the reaction of the blood, its coagulation time, its specific gravity, its chemical constitution, etc., have not been without value. The practical worth of this more recent investigation remains to be determined, though some observers, notably Bachmann and Determann, are already trying to attach this new coach to the train of medical art.

Early investigators in the study of viscosity were hampered by intricate or by imperfect apparatus, and as a consequence their results were few and of doubtful value. With the advent of more efficient instruments, however, the subject gives greater promise. To Burton-Opitz, Hess, Determann, Hirsch

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