Early onset breast cancer: Differences in environmental and reproductive factors, tumor phenotype and BRCA1/BRCA2 genotype between the north and south of the Mediterranean Sea

Pujol, Pascal; Henouda, Sarra; Toledano, Alain; Ben Nejima, Dalel; Boussen, Hamouda; Habib, Faouzi; Mouhout, Asma; Gaballah, Ahmed; El-Ghazaly, Hesham; Bourgier, Celine; Coupier, Isabelle; Bertet, Helena; Galibert, Virginie; Vilquin, Paul; Biquard, Louise; Rey, Jean-Marc; Belkacemi, Yazid; Picot, Marie Christine; Bensalem, Assia; Corsini, Carole;