RT Journal T1 Colorimetric investigation of normal tongue and lip colors from 516 healthy adults by visible reflection spectrum A1 Chang-chun Zeng, Li Yang, Ying Xu, Pei-pei Liu, Shi-jun Guo, Song-hao Liu PB Journal of Integrative Medicine FD 2011-09-20 YR 2011 JF Journal of Integrative Medicine JO Journal of Integrative Medicine VO 9 IS 9 SP 948 DO 10.3736/jcim20110905 K1 ;inspection;tongue inspection;objectifying tongue inspection;lip;light;XYZ tristimulus values;brightness;dominant wavelength;chromaticity coordinates;excitation purity LK {http://www.jcimjournal.com/EN/article/article_705.shtml}