A genome‐wide RNAi screen reveals essential therapeutic targets of breast cancer stem cells oleh Abir Arfaoui, Claire Rioualen, Violette Azzoni, Guillaume Pinna, Pascal Finetti, Julien Wicinski, Emmanuelle Josselin, Manon Macario, Rémy Castellano, Candi Léonard‐Stumpf, Anthony Bal, Abigaelle Gros, Sylvain Lossy, Maher Kharrat, Yves Collette, Francois Bertucci, Daniel Birnbaum, Hayet Douik, Ghislain Bidaut, Emmanuelle Charafe‐Jauffret, Christophe Ginestier