Re: (1) “Differential localization of LGR5 and Nanog in clusters of colon cancer stem cells” by Amsterdam A, Raanan C, Schreiber L, Freyhan O, Fabrikant Y, Melzer E, Givol D [Acta Histochem. (2012, October 23), pii: S0065-1281(12)00112-2] and (2) “Localization of the stem cell markers LGR5 and Nanog in the normal and the cancerous human ovary and their inter-relationship” by Amsterdam A, Raanan C, Schreiber L, Freyhan O, Schechtman L, Givol D [Acta Histochem. (2012, October 20), pii: S0065-1281(12)00113-4]