Investigating symptoms: use of questionnaires in gastroenterology.
Calabrese
E
E
Department of Clinical Sciences, La Sapienza University, Rome, Italy.
Alghisi
F
F
Corazziari
E
E
Pallotta
N
N
D005767:Gastrointestinal Diseases / Q000175:diagnosis* / Q000209:etiology*; D006801:Humans; D011795:Surveys and Questionnaires