Physical therapists need to build up appropriate hypotheses about anatomical structures which can cause symptoms, based on the subjective information about area of pain from the patient. These hypoth eses are tested and clarified during the subjective examination and physical examination as well as treatment. It is, however, difficult to enumerate the appropriate anatomical structures without knowledge and experience. The purpose of this article is to describe the anatomical structure which can

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... cause shoulder pain and signs obtained from objective examination to help efficient clinical reasoning.