A Proposal for a New Classification of the Supernumerary Heads of the Biceps Brachii Muscle

Table 3

Difference between study of the presence of the third head of the biceps brachii.

Study	Number of cases	Percentage
Kosugi et al. [10]	75	13.7
Rodriguez-Niedenfuhr et al. [31]	27	7.7
Nayak et al. [30]	2	4.2
Bellasteros etl al. [3]	21	19.8
Al-Kushi et al. [2]	6	15
Present study – Szewczyk et al.	25	31.25