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Flap harvest patterns were classified into three groups according to the Holm perfusion zones included with the flap: a) Example of a Hemiflap, which includes Holm zones 1 and 2; b) Example of a Cross-Midline Flap, which includes Holm zones 1, 2, and 3; and c) Example of a Total Flap, which includes Holm zones 1, 2, 3, and 4.
