Condition: Cystic Fibrosis
1	Cystic Fibrosis/
2	cystic fibrosis.tw.
3	mucoviscidos$.tw.
4	((cysti$ or cisti$) adj10 fibros$).tw, ot.
5	(fibrocystic* and pancreas*).tw.
6	or/21‐25
Filter: RCTs
7	treatment effectiveness evaluation.sh.
8	clinical trials.sh.
9	mental health program evaluation.sh.
10	randomly.ab.
11	randomi#ed.ti,ab.
12	(placebo or (attention control)).ab.
13	(waitlist$ or (wait$ adj2 list$)).ab.
14	trial.ti,ab.
15	((singl$ or doubl$ or trebl$ or tripl$) adj3 (blind$ or mask$ or dummy)).mp.
16	(control$ adj3 (trial$ or study or studies or group$)).ti,ab.
17	factorial$.ti,ab.
18	(allocat$ or assign$).ti,ab.
19	(crossover$ or cross over$).ti,ab.
20	(quasi adj (experimental or random$)).mp.
21	"2000".md.
22	or/7‐21
23	(6 and 22)