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<p>pain, including blood vessels, <a href="page.php?w=internal_organs">internal organs</a>, <a href="page.php?w=infections">infections</a>, mechanical and <a href="page.php?w=autoimmune">autoimmune</a> causes. Approximately 90 percent of people with back pain are diagnosed with nonspecific, idiopathic acute pain with no identifiable underlying pathology. In approximately 10 percent of people, a cause can be identified through diagnostic imaging. Fewer than two percent of cases are attributed to secondary factors, with <a href="page.php?w=metastatic_cancer">metastatic cancer</a>s</p><p>
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