8Botchkarev V A, Kishimoto J. Molecular control of epithelial- mesenchymal interactions during hair follicle cycling[J]. The Journal of Investigative Dermatology, 2003, 8(1): 46-55.
9. Hynd P I. The nutritional biochemistry of wool and hair follieles[J]. Animal Science,2000,70: 181-195.
10Jamora C, Dasgupta R, Kocieniewski P, et al. Links between signal transduction, transcription and adhesion in epithelial bud development[J]. Nature, 2003, 422(6929): 317-322.