Cimerman, N., Meško-Brguljan, P., Krašovec, M., Šuškovič, S., & Kos, J. (2002). Circadian rhythms of cysteine proteinases and cystatins, potential tumour markers, in normal sera. Radiology and Oncology, 36(2). Retrieved from https://radioloncol.com/index.php/ro/article/view/1417