Biochemical Pathogenesis of Myofascial Pain

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Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context:

1. 1A correlation analysis of the regional distribution of central enkephalin and β‐endorphin immunoreactive terminals and of opiate receptors in adult and old male rats. Evidence for the existence of two main types of communication in the central nervous system: the volume transmission and the wiring transmission1986 · 274 citations
2. 2Elevated CSF levels of substance P and high incidence of Raynaud phenomenon in patients with fibromyalgia: new features for diagnosis1988 · 421 citations