Word: banzhafs
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...three years Drs. Felton and Rosenow at Harvard and Drs. Park and Banzhaf at the New York City Board of Health had worked to get the horse serum out of the final product. Finally they were successful. They developed a method of growing the antibodies in the horse, making the serum, then refining it until all the horse serum was removed, leaving only the helpful antibodies. The refined product is ten times as effective and has no dangerous after effects. There is only one place in Canada or the United States where this serum is prepared: the Board of Health...