Reprint from Journal of National Cancer Institute (series). 402. Tumor lipoids, pt. 1, Preparation of serologically active nonsaponiflable fraction of liver of cancer-bearing patients, [with list of references; by] Harry S. Penn; and pt. 2, Clinical evaluation of serologically active nonsaponiflable fraction of liver of cancer-bearing patients [with list of references; by] George C. Hall, Andrew H. Dowdy, Harry S. Penn, and Albert W. Bellamy.

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