Very Preterm Children Gut Microbiota Comparison at the Neonatal Period of 1 Month and 3.5 Years of Life oleh Gaël Toubon, Gaël Toubon, Gaël Toubon, Marie-José Butel, Marie-José Butel, Jean-Christophe Rozé, Patricia Lepage, Johanne Delannoy, Johanne Delannoy, Pierre-Yves Ancel, Pierre-Yves Ancel, Marie-Aline Charles, Julio Aires, Julio Aires, for the EPIFLORE Study Group, Clotilde Rousseau, Joel Dore, Ziad Al Nabhani, Karine Le Roux, Celine Monot, Laetitia MartinMarchand, Melanie Durox, Alexandre Lapillonne, Jean-Charles Picaud, Farid Boudred, Delphine Mitanchez, Valerie Biran, Laurent Storme, Olivier Claris, Gilles Cambonie, Cyril Flamant, Anne Sauret, Odile Dicky, Geraldine Favrais, Jean-Michel Hascoet, Geraldine Gascoin, Gerard Thiriez, Luc Desfrere, Xavier Durrmeyer, Clement Chollat