Fig. 2. Schematic diagram showing the measurements of transversus abdominis muscle. TT’, medial margin of transversus abdominis muscle; RR’, lateral margin of rectus abdominis; dotted line, arcuate line; measurements were taken at (a) the level of xiphisternum; (b) the midway between xiphisternum and umbilicus; (c) the level of umbilicus; (d) the level of arcuate line; (e) the midway between arcuate line and pubic symphysis.
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