RT Journal Article SR Electronic T1 Some Observations Concerning Pain in the Neck, Upper Chest, and Arms JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 37 OP 43 VO 14 IS 1 A1 Tucker, John YR 1947 UL http://www.ccjm.org/content/14/1/37.abstract AB