(Chapter 21) Footnote 22:

This would include the four rotator cuff muscles (m. subscapularis, m. supraspinatus, m. infraspinatus, m. teres minor) and five other muscles controlling motion of the humerus (m. deltoideus, m. triceps brachii, caput longum, m. teres major, m. biceps brachii, m. coracobrachialis).