title: [Echography, an efficacious and inoffensive technique].
authors.affiliation: CH de Fontainebleau.
authors.forename: Yves
authors.initials: Y
authors.lastname: Koch
authors.forename: Sylvie
authors.initials: S
authors.lastname: Warnet
mesh_terms: D006801:Humans; D018579:Patient Selection; D014463:Ultrasonography / Q000379:methods*; D016216:Ultrasonography, Prenatal / Q000379:methods