title: Review.
authors.affiliation: Loyola University, Chicago, IL 60611, USA.
authors.forename: Daniel
authors.initials: D
authors.lastname: Farray
authors.forename: Joseph I
authors.initials: JI
authors.lastname: Clark
mesh_terms: D018278:Carcinoma, Neuroendocrine / Q000145:classification / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans