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(A) COL1A1, (B) COL1A2, (C) COL3A1, (F) COL5A1, (G) COL5A2, and (H) COL6A3 showed significant differences in different GC stages. (D) COL4A1, (I) FN1, and (E) COL4A2 were not significantly different across various stages.
