Search line	Search terms	Comments
#1	BRONCH:MISC1	MISC1 denotes the field in the record where the record has been coded for condition, in this case, bronchiectasis
#2	MeSH DESCRIPTOR Bronchiectasis Explode All	Index term for bronchiectasis, exploded to retrieve all narrower terms
#3	bronchiect*
#4	#1 or #2 or #3	search line combines all population terms
#5	MeSH DESCRIPTOR Anti‐Bacterial Agents Explode 1	Index term for antibiotics, exploded to retrieve all narrower terms
#6	antibiotic* or anti‐biotic*
#7	anti‐bacteri* or antibacteri*
#8	*cillin
#9	*mycin OR *micin
#10	*oxacin
#11	*tetracycline
#12	macrolide*
#13	quinolone*
#14	trimethoprim
#15	ceph*
#16	sulpha*
#17	#5 or #6 or #7 or #8 or #9 or #10 or #11 or #12 or #13 or #14 or #15 or #16	search line combines all intervention terms
#18	#4 and #17	search line brings together population and intervention terms