Database		Strategy/Limits
PubMed	1	Medical student* OR students, medical [MeSH] OR osteopathic medical student* OR osteopathic medicine[MeSH]
	2	Research OR research[MeSH] OR career choice* OR career choice[MeSH] OR physician scientist*
	3	1 AND 2
	4	Motivation* OR motivation[MeSH] OR attitude* OR attitude[MeSH] OR perception* OR perception[MeSH] OR interest
	5	3 AND 4 (Limited to 9/29/2007–9/29/2017
Database		Strategy/Limits
Scopus	1	[TITLE-ABS-KEY] ‘medical student’ OR ‘medical students’ OR ‘osteopathic medical student’ OR ‘osteopathic medical students’ OR ‘osteopathic medicine’
	2	[TITLE-ABS-KEY] ‘career choice’ OR ‘career choices’ OR career OR careers
	3	[TITLE-ABS-KEY] research
	4	[TITLE-ABS-KEY] ‘physician scientist’ OR ‘physician scientists’
	5	[TITLE-ABS-KEY] motivation OR motivations OR attitude OR attitudes OR perceptions OR perception OR interest OR interests
	6	1 AND 2 AND 3 AND 4 AND 5
	7	PUBYEAR limited to 2007–2017, LANG English
Database		Strategy/Limits
Cochrane	#1	medical students
	#2	MeSH descriptor: [Students, Medical] explode all trees
	#3	#1 or #2
	#4	osteopathic medical students
	#5	osteopathic medicine
	#6	MeSH descriptor: [Osteopathic Medicine] explode all trees
	#7	#4 or #5 or #6
	#8	#7 or #3
	#9	perceptions
	#10	motivations
	#11	attitudes
	#12	interests
	#13	MeSH descriptor: [Motivation] explode all trees
	#14	MeSH descriptor: [Perception] explode all trees
	#15	MeSH descriptor: [Attitude] explode all trees
	#16	#9 or #10 or #11 or #12 or #13 or #14 or #15
	#17	career
	#18	career choice
	#19	MeSH descriptor: [Career Choice] explode all trees
	#20	#17 or #18 or #19
	#21	physician scientist
	#22	physician researcher
	#23	#21 or #22
	#24	#3 or #7
	#25	#24 and #16
	#26	#20 and #25
	#27	#23 and #26
	#28	#8 and #16
	#29	#20 and #28
	#30	#29 and #23
	#31	research
	#32	MeSH descriptor: [Research] explode all trees
	#33	#31 or #32
	#34	#30 and #33 Publication Year from 2007 to 2017