RECENTLY, several workers 1 have tried to fractionate gamma-globulins and immune sera by electrophoresis. Such experiments have only given the mean properties of all gamma-globulin proteins, since non ...
The number of poliomyelitis cases reported in the U.S. as a whole was running about 8% ahead of last year: 2,543 cases since the disease year began April 1, as against 2,361. Local health officers ...
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