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First page of Farber S. Some observations on the effect of folic acid antagonists on acute leukemia and other forms of incurable cancer. <italic>Blood</italic>. 1949;4(2):<related-article id="ra1" related-article-type="companion" vol="4" page="160" journal-id="0006-4971" journal-id-type="issn">160-167</related-article>.
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