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The cervico-cranial area: 1: lesser occipital nerve or C2; 19: cranial nerve XII; 4: cranial nerve X; 5: cranial nerve XI; 17: geniohyoid muscle; 10: phrenic nerve.
AA VV, Anatomia dell’uomo, 4 ed, Edi.ermes, [Several authors, Human Anatomy, Fourth Edition, edition EdiErmes], Milano. www.eenet.it.
