Amaral ATeresa, Manara MCristina, Berghuis D, Ordóñez JLuis, Biscuola M, Lopez-García MAngeles, Osuna D, Lucarelli E, Alviano F, Lankester A, et al. Characterization of human mesenchymal stem cells from ewing sarcoma patients. Pathogenetic implications. PLoS One. 2014;9(2):e85814.