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PC plots comparing spectra of ovarian DNAs from (A) morphologically normal tissue (On) and primary adenocarcinoma (AC); (B) AC and metastasized primary AC (ACm); (C) ACm with AC metastases to the colon (ACdm); and (D) a comparison of On with ACdm. See text and Table 1 for statistical comparisons of order–disorder status between groups.
