Ohlsson, L., Hammarström, M.-L., Israelsson, A., Näslund, L., Öberg, Å., Lindmark, G., Hammarström, S. Biomarker selection for detection of occult tumour cells in lymph nodes of colorectal cancer patients using real-time quantitative RT-PCR. Br. J. Cancer. 2006; 95(2): 218-225. DOI: 10.1038/sj.bjc.6603206.