Table 1 MEDLINE search terms for the concepts dysphagia and multiple sclerosis

Dysphagia^a

1

deglutition disorders/

2

deglutition/

3

enteral nutrition/

4

((enteral or tube or gastric) adj feed$).ti,ab,kf

5

((deglut$ or swallow$) adj3 (difficult$ or disorder$ or abnormal$ or delay$ or dysfunction$ or impair$ or problem$ or disabil$ or disabl$ or deficit$)).ti,ab,kf

6

((deglut$ or swallow$) adj3 (behavior or behaviour or function$)).ti,ab,kf

7

dysphag$.ti,ab,kf

8

1 or 2 or 3 or 4 or 5 or 6 or 7

MS^b

9

exp Multiple Sclerosis/

10

Demyelinating diseases/

11

(("multiple sclerosis" or MS) adj3 "chronic progress*").ti,ab,kf

12

(("multiple sclerosis" or MS) adj3 "progress* relaps*").ti,ab,kf

13

(("multiple sclerosis" or MS) adj3 "progress* chronic").ti,ab,kf

14

(("multiple sclerosis" or MS) adj3 "relaps* progress*").ti,ab,kf

15

(("multiple sclerosis" or MS) adj3 "secondary progress*").ti,ab,kf

16

(("multiple sclerosis" or MS) adj3 "primary progress*").ti,ab,kf

17

(("multiple sclerosis" or MS) adj3 "relaps* remi*").ti,ab,kf

18

(("multiple sclerosis" or MS) adj3 "remi* relaps*").ti,ab,kf

19

(("multiple sclerosis" or MS) adj3 "acute relaps*").ti,ab,kf

20

(("multiple sclerosis" or MS) adj3 "optic* spinal").ti,ab,kf

21

(("multiple sclerosis" or MS) adj3 "optic spinal").ti,ab,kf

22

(("multiple sclerosis" or MS) adj3 "acute fulminat*").ti,ab,kf

23

or\9–22

24

8 and 23