title: Is exposure to a patient with Crohn's disease an environmental factor for developing the disease.
authors.forename: M
authors.initials: M
authors.lastname: Alic
mesh_terms: D002463:Cell Membrane Permeability; D003424:Crohn Disease / Q000209:etiology*; D005190:Family; D006801:Humans; D007413:Intestinal Mucosa; D018454:Spouses