From: Is identification and dissection of the external laryngeal nerve necessary during thyroidectomy? A prospective study
Cernea [35]
Kierner [19]
Type I (68% SG, 23% LG)
Type I (42%)
Type IIa (11% SG, 15% LG)
Type II (30%)
Type IIb (14% SG, 54% LG)
Type III (14%)
Not described
Type IV (14%)
