AltoĂ©, SoniaAnderson, DebbyAutor na capaBehlau, MaraCamargo, Cristina PiresCarvalho, JoĂŁo LeiteDayan, GabrielDehaan, MartDitchfield, ChristinDiversosDiversos autoresGarrido, Jaime FernandezGiele, HenkHill, NapoleonHoffman, Barbara L.Jakubovicz, ReginaKaplan, Peter WLechter, SharonMann, Margaret W.PĂŁo DiĂĄrioRehder, Maria InĂȘsRondal, Jean-AdolpheSamuels, Martin A.Shaw, ChristopherSOBED - Sociedade Brasileira de Endoscopia DigestivaSpurgeon, C. H.Stuart, ScottTercarolli, Telma de FranciscoVĂĄrios autoresvĂĄrios, vĂĄriosWibelinger, Lia Mara