R. H. Allen, S. P. Stabler, D. G. Savage and J. Lindenbaum, “Metabolic Abnormalities in Cobalamin (Vitamin B12) and Folate Deficiency,” Journal of the Federation of American Societies for Experimental Biology, Vol. 7, No. 14, 1993, pp. 1344-1352.
 P. R. Walker, B. Smith, C. Carson, J. Le Blanc, M. Sikorska, C. S. Woodhouse and S. C. Morgan, “Induction of Apoptosis in Neoplastic Cells by Depletion of Vitamin B12,” Cell Death and Differentiation, Vol. 4, 1997, pp. 233-241. doi:10.1038/sj.cdd.4400225
 I. Volkov, Y. Press and I. Rudoy, “Vitamin B12 Could Be A ‘Master Key’ in the Regulation of Multiple Pathologic Processes,” Journal of Nippon Medical School, Vol. 73, No. 2, 2006, pp. 65-69. doi:10.1272/jnms.73.65
 N. Srivastava, S. Chand, M. Bansal, K. Srivastava and S. Singh, “Reversible Hyperpigmentation as the First Manifestation of Dietary Vitamin B12 Deficiency,” Indian Journal of Dermatology Venereology and Leprology, Vol. 72, No. 5, 2006, pp. 389-930. doi:10.4103/0378-6323.27766
 G. L. Wolff, R. L. Kodell, S. R. Moore and C. A. Cooney, “Maternal Epigenetics and Methyl Supplements Affect Agouti Gene Expression in Avy/A Mice,” Journal of the Federation of American Societies for Experimental Biology, Vol. 12, No. 11, 1998, pp. 949-957.
 N. H. Park, “Topical Administration of Cyanocobalamin (Vitamin B12) Showed Suppression of Potassium Channel Inhibitor (Tolbutamide) and Induction of Murine Hair Anagen Phase and Synergistic Effect with Minoxidil,” Dermatology, Vol. 213, No. 1, 2006, pp. 53-80.
 C. Fathke, L. Wilson, K. Shah, B. Kim, A. Hocking, R. Moon and F. Isik, “Wnt Signaling Induces Epithelial Differentiation during Cutaneous Wound Healing,” BMC Cell Biology, Vol. 7, 2006, p. 4. doi:10.1186/1471-2121-7-4
 S. Estrach, C. A. Ambler, C. Lo Celso, K. Hozumi and F. M. Watt, “Jagged 1 Is a ?-Catenin Target Gene Required for Ectopic Hair Follicle Formation in Adult Epidermis,” Development, Vol. 133, 2006, pp. 4427-4438. doi:10.1242/dev.02644
 D. Van Mater, F. T. Kolligs, A. A. Dlugosz and E. R. Fearson, “Transient Activation of Beta-Catenin Signaling in Cutaneous Keratinocytes Is Sufficient to Trigger the Active Growth Phase of the Hair Cycle in Mice,” Genes & Development, Vol. 17, No. 10, 2003, pp. 1219-1224. doi:10.1101/gad.1076103
 M. P. Philpott and T. Kealey, “Effects of EGF on the Morphology and Patterns of DNA Synthesis in Isolated Human Hair Follicles,” Journal of Investigative Dermatology, Vol. 102, 1994, pp. 186-191. doi:10.1111/1523-1747.ep12371760
 C. S. Harmon and T. D. Nevins, “Evidence that Activation of Protein Kinase a Inhibits Human Hair Follicle Growth and Hair Fibre Production in Organ Culture and DNA Synthesis in Human and Mouse Hair Follicle Organ Culture,” British Journal of Dermatology, Vol. 136, No. 6, 1997, pp. 853-858. doi:10.1111/j.1365-2133.1997.tb03924.x
 R. Hirota, S. Tajima, Y. Yoneda T. Tamayama, M. Watanabe, K. Ueda, T. Kubota and R. Yoshida, “Alopecia of IFN-Gamma Knockout Mouse as a Model for Disturbance of the Hair Cycle: A Unique Arrest of the Hair Cycle at the Anagen Phase Accompanied by Mitosis,” Journal of Interferon and Cytokine Research, Vol. 22, No. 9, 2002, pp. 935-945. doi:10.1089/10799900260286641
 C. M. Baker, A. Verstuyf, K. B. Jensen and F. M. Watt, “Differential Sensitivity of Epidermal Cell Subpopulations to Beta-Catenin-Induced Ectopic Hair Follicle Formation,” Developmental Biology, Vol. 343, 2010, pp. 40-50. doi:10.1016/j.ydbio.2010.04.005
 O. S. Kwon, J. K. Oh, M. H. Kim, S. H. Park, H. K. Pyo, K. H. Kim, K. H. Cho and H. C. Eun, “Human Hair Growth Ex Vivo is Correlated with in Vivo Hair Growth: Selective Categorization of Hair Follicles for More Reliable Hair Follicle Organ Culture,” Archives of Dermatological Research, Vol. 297, No. 8, 2006, pp. 367-371. doi:10.1007/s00403-005-0619-z
 C. A. Hall and P. D. Colligen, “The Function of Cellular Transcobalamin II in Cultured Human Cells,” Experimental Cell Research, Vol. 183, No. 1, 1989, pp. 159-167. doi:10.1016/0014-4827(89)90426-6