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Table 1 Prevalence of anatomical variations of the EBSLN according to Cernea classification

From: Is identification and dissection of the external laryngeal nerve necessary during thyroidectomy? A prospective study

Subgroups

Number of studies (number of nerves)

Type I

Type IIa

Type IIb

All the groups

33 (6098)

39%

42%

19%

Peroperative

24 (5702)

35%

44%

21%

Cadaverous

9 (396)

50,5%

34,5%

15%