obstruction dc la veine cave supérieure accompagnée d un œdème facial ;
O O O B-AnatomicalStructure I-AnatomicalStructure I-AnatomicalStructure O O O B-Symptom O O
obstruction dc la veine cave supérieure accompagnée d un œdème facial ;
[['AnatomicalStructure', 18, 39], ['Symptom', 57, 62]]