Quantification of Mesenchymal Stem Cell Growth Rates through Secretory and Excretory Biomolecules in Conditioned Media via Fresnel Reflection by Ahmad, Harith, Thambiratnam, K., Zulkifli, Ahmad Zarif, Lawrence, A., Jasim, A.A., Kunasekaran, W., Musa, S., Gnanasegaran, N., Vasanthan, P., Jayaraman, P., Kasim, N.H.A., Govindasamy, V., Shahrir, M.S., Harun, Sulaiman Wadi