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Probe placement for high-resolution ultrasonographic visualization of GBGFN (ESAOTE, Italy, 13 MHz, linear array probe). a The arrow indicates the probe movement. The ASIS (black semi-circle) and inguinal ligament as landmarks. b Ultrasonographic image of GBGFN obtained by the probe position. GBGFN (yellow circles). EIA external iliac artery, GBGFN genital branch of genital femoral nerve, IEA inferior epigastric artery
