1. Pang, B., Zhang, D., Li, N.M., Wang, K.: Computer Aided Tongue Transactions on biomedical engineering. 10(51), 1803 (2004)
2. Pang, B., Zhang, D., Li, N.M., Wang, K.: Computerized Tongue Diagnosis Based on Bayesian Networks. IEEE Transactions on biomedical engineering 51(10), 1803 (2004)
3. Wang, L.: Diagnostics of Traditional Chinese Medicine. Shanghai University of Traditional Chinese Medicine (2006)
4. Ying, A.: Quantitative Study of Facial Color of Patient with Jaundice. Journal of TCM Univ. of Human (Chinese) 13(5), 71 (1998)
5. Cai, G.: Quantitative Measurement of 508 Cases Pathological Color. China Journal of Traditional Chinese Medicine and Pharmacy (Chinese) 11(1), 20–21 (1996)