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Frequency of pyknotic, DY-labeled RGCs in hamsters on P4. n indicates the number of cases in each group. The frequency of pyknotic nuclei in trkB-Fc-treated hamsters differs significantly from that in untreated and trkA-Fc-treated hamsters, but there is no significant difference in frequency between untreated and trkA-Fc-treated hamsters (see Results). pvalues indicate significance of intergroup differences.
