Ultrastructure of the synovial sensory peptidergic fibers is distinctively altered in different phases of adjuvant induced arthritis in rats: ultramorphological characterization combined with morphometric and immunohistochemical study for substance P, calcitonin gene related peptide, and protein gene product 9.5.Shunsuke Imai, Seppo Santavirta, Y. Tokunaga et al.|PubMed|1997Cited by 32