[Introduction of the evidence].
Marteau
Philippe
P
Service d'hépato-gastroentérologie, Hôpital Européen Georges Pompidou, 75015 Paris.
Beaugerie
Laurent
L
Bouhnik
Yoram
Y
Flourié
Bernard
B
Gambiez
Luc
L
Reimund
Jean-Marie
JM
Seksik
Philippe
P
D003093:Colitis, Ulcerative / Q000145:classification* / Q000473:pathology*; D006801:Humans; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires