Editorial Expression of Concern to: TGF-β1 exposure induces epithelial to mesenchymal transition both in CSCs and non-CSCs of the A549 cell line, leading to an increase of migration ability in the CD133+ A549 cell fraction - V. Tirino; R. Camerlingo; K. Bifulco; E. Irollo; R. Montella; F. Paino; G. Sessa; M. V. Carriero; N. Normanno; G. Rocco; G. Pirozzi (Cell Death and Disease)