W. Holtkamp, T. Stollberg and H. E. Reis, “Serum Interleukin-6 Is Related to Disease Activity but Not Disease Specificity in Inflammatory Bowel Disease,” Journal of Clinical Gastroenterology, Vol. 20, No. 2, 1995, pp. 123-126. doi:10.1097/00004836-199503000-00010
 C. Niederau, F. Backmerhoff, B. Schumacher and C. Niederau, “Inflammatory Mediators and Acute Phase Proteins in Patients with Crohn’s Disease and Ulcerative Colitis,” Hepatogastroenterology, Vol. 44, No. 13, 1997, pp. 90-107.
 S. Liu, C. Ginestier and S.J. Ou, “Breast Cancer Stem Cells Are Regulated by Mesenchymal Stem Cells through Cytokine Networks,” Cancer Reserch, Vol. 71, No. 6, 2011, pp. 614-624. doi:10.1158/0008-5472.CAN-10-0538
 Z. Tang, M. Yu, F. Miller, R. S. Berk, G. Tromp and M. A. Kosir, “Increased Invasion through Basement Membrane by CXCL7-Transfected Breast Cells,” The American Journal of Surgery, Vol. 196, No. 5, 2008, pp. 690-696. doi:10.1016/j.amjsurg.2008.08.001
 Z. Zhong, Z.Wen and J. E. Jr. Darnell, “Stat3: A STAT Family Member Activated by Tyrosine Phosphorylation in Response to Epidermal Growth Factor and Inter- leukin-6,” Science, Vol. 264, No. 5155, 1994, pp. 95-98. doi:10.1126/science.8140422
 T. Kordula, M. Bugno, J. Goldstein, and J. Travis, “Activation of Signal Transducer and Activator of Transcription-3 (Stat3) Expression by Interferon-Gamma and Interleukin-6 in Hepatoma Cells,” Biochemical and Biophysical Research Communications, Vol. 216, No. 3, 1995, pp. 999-1005. doi.org/10.1006/bbrc.1995.2719
 T. Kusaba, T. Nakayama, K. Yamazumi, Y. Yakata, A. Yosizaki, T. Nagayasu and I. Sekine, “Expression of p-STAT3 in Human Colorectal Adenocarcinoma and Adenoma; Correlation with Clinicopathological Factors,” Journal of Clinical Pathology, Vol. 58, No. 8, 2005, pp. 833-838. doi:10.1136/jcp.2004.023416
 J. K. Park, R. Hong, K. J. Kim, T. B. Lee and S. C. Lim, “Significance of p-STAT3 Expression in Human Colorectal Adenocarcinoma,” Oncology Reports, Vol. 20, No. 3, 2008, pp. 597-604. doi:10.3892/or00000047
 X. T. Ma, S. Wang, Y. J. Ye, R. Y. Du, Z. R. Cui and M. Somsouk, “Constitutive Activation of Stat3 Signaling Pathway in Human Colorectal Carcinoma,” World Journal of Gastroenterology, Vol. 10, No. 11, 2004, pp. 1569-1573.
 F.M. Corvinus, C. Orth, R. Moriggl, S. A. Tsareva, S. Wagner, E. B. Pfitzner, D. Baus, R. Kaufmann, L. A. Huber, K. Zatloukal, H. Beug, P. Ohlschlager, A. Schütz, K. J. Halbhuber and K. Friedrich, “Persistent STAT3 Activation in Colon Cancer Is Associated with Enhanced Cell Proliferation and Tumor Growth,” Neoplasia, Vol. 7, No. 6, 2005, PP. 545-555. doi:10.1593/neo.04571
 G. Kalwitz, M. Endres, K. Neumann, K. Skriner, J. Ringe, O. Sezer, M. Sittinger, T. Haupl and C. Kaps, “Gene Expression Profile of Adult Human Bone Marrow-Derived Mesenchymal Stem Cells Stimulated by the Chemokine CXCL7,” The International Journal of Biochemistry & Cell Biology, Vol. 41, No. 3, 2009, 649-658. doi.org/10.1016/j.biocel.2008.07.011