Tumor DNA hypomethylation of LINE-1 is associated with low tumor grade of breast cancer in Tunisian patients. - Zeggar, Hayet Radia; How-Kit, Alexandre; Daunay, Antoine; Bettaieb, Ilhem; Sahbatou, Mourad; Rahal, Khaled; Adouni, Olfa; Gammoudi, Amor; Douik, Hayet; Deleuze, Jean-François; Kharrat, Maher (Oncology Letters, 2020)