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des Portes V, Livet MO, Vallée L; Groupe de travail de la Société française de neuropédiatrie (SFNP) sur les retards mantaux.des Portes V, et al. Among authors: vallee l.Arch Pediatr. 2002 Jul;9(7):709-25. doi: 10.1016/s0929-693x(01)00973-3.Arch Pediatr. 2002.PMID: 12162161Review.French.