CD44 and vulvar squamous cell carcinoma: Colorectal specificity of this CD44-fingerprint is detailed and proven elsewhere (publication in progress, Rásó-Barnett et al.), here we just demonstrate a few samples of CD44 fingerprints of other tumour types, i.e. MCF7 (breast cancer), HT199 (melanoma), A431 (vulvar epidermoid carcinoma), and K562 (myelogenous leukemia) respectively.