Appendix 1. Search Strategy .

Database	Query	Items found
Pubmed	Search ((((((("Early Detection of Cancer"[Majr]) OR "Papanicolaou Test"[Majr]) OR "Human Papillomavirus DNA Tests"[Majr]) OR "Vaginal Smears"[Majr]) OR ((((((((((("cancer screening"[Title/Abstract]) OR "follow up testing"[Title/Abstract]) OR "pap smear"[Title/Abstract]) OR "hpv test"[Title/Abstract]) OR "human papillomavirus"[Title/Abstract]) OR "risk reduction"[Title/Abstract]) OR "cancer prevention/cancer risk"[Title/Abstract]) OR "human papilloma virus"[Title/Abstract]) OR "cervical excision"[Title/Abstract]) OR "pap test"[Title/Abstract])))) AND (((("Vaginal Neoplasms"[Majr]) OR "Vulvar Neoplasms"[Majr]) OR "Uterine Cervical Neoplasms"[Majr]) OR (((("cervical cancer"[Title/Abstract]) OR "vaginal cancer"[Title/Abstract]) OR "vulvar cancer"[Title/Abstract]) OR "uterine cervix cancer"[Title/Abstract]))) AND (((((((((((((((((((("willingness to pay"[Title/Abstract]) OR "willing to pay"[Title/Abstract]) OR "willing to accept"[Title/Abstract]) OR WTP[Title/Abstract]) OR "patient preference"[Title/Abstract]) OR "patient acceptance"[Title/Abstract]) OR "stated preference"[Title/Abstract]) OR "revealed preference"[Title/Abstract]) OR "consumers' hypothetical"[Title/Abstract]) OR "willingness to accept"[Title/Abstract]) OR WTA[Title/Abstract]) OR CVM[Title/Abstract]) OR "contingent valuation method"[Title/Abstract]) OR "contingent valuation survey"[Title/Abstract]) OR "cost benefit analysis"[Title/Abstract]) OR "economic evaluation"[Title/Abstract])	184
Web of Science	# 1 TS=("Early Detection of Cancer" OR "Papanicolaou Test" OR "Human Papillomavirus DNA Tests" OR "Vaginal Smears" OR "cancer screening" OR "follow up testing" OR "pap smear" OR "hpv test" OR "human papillomavirus" OR "risk reduction" OR "cancer prevention/cancer risk" OR "human papilloma virus" OR "cervical excision" OR "pap tests") Indexes=SCI-EXPANDED, SSCI, A&HCI, ESCI Timespan=All years # 2 TS=("Vaginal Neoplasms" OR "Vulvar Neoplasms" OR "Uterine Cervical Neoplasms" OR "cervical cancer" OR "vaginal cancer" OR "vulvar cancer" OR "uterine cervix cancer") Indexes=SCI-EXPANDED, SSCI, A&HCI, ESCI Timespan=All years # 3 TS=("willingness to pay" OR "willing to pay" OR "willing to accept" OR WTP OR "patient preference" OR "patient acceptance" OR "stated preference" OR "revealed preference" OR "consumers' hypothetical" OR "willingness to accept" OR WTA OR CVM OR "contingent valuation method" OR "contingent valuation survey" OR "cost benefit analysis" OR "economic evaluation") Indexes=SCI-EXPANDED, SSCI, A&HCI, ESCI Timespan=All years # 4 #3 AND #2 AND #1 Indexes=SCI-EXPANDED, SSCI, A&HCI, ESCI Timespan=All years	245
Scopus	(TITLE-ABS-KEY( "Early Detection of Cancer" OR "Papanicolaou Test" OR "Human Papillomavirus DNA Tests" OR "Vaginal Smears" OR "cancer screening" OR "follow up testing" OR "pap sme ar" OR "hpv test" OR "human papillomavirus" OR "risk reduction" OR "cancer prevention/cancer risk" OR "human papilloma virus" OR "cervical excision" OR "pap tests" ))AND(TITLE-ABS-KEY( "Vaginal Neoplasms" OR "Vulvar Neoplasms" OR " Uterine Cervical Neoplasms" OR "cervical cancer" OR "vaginal cancer" OR "vulvar cancer" OR "uterine cervix cancer" ))AND(TITLE-ABS-KEY( "willingness to pay" OR "willing to pay" OR "willing to accept" OR wtp OR "patient preference" OR "patient acceptance" OR "stated preference" OR "revealed preference" OR "consumers' hypothetical" OR "willingness to accept" OR wta OR cvm OR "contingent valuation method" OR "contingent valuation survey" OR "cost benefit analysis" OR "economic evaluation" ))	2477
Embase	'willingness to pay':ti,ab OR 'willing to pay':ti,ab OR 'willing to accept':ti,ab OR wtp:ti,ab OR 'patient preference':ti,ab OR 'patient acceptance':ti,ab OR 'stated preference':ti,ab OR 'revealed preference':t i,ab OR 'consumers hypothetical':ti,ab OR 'willingness to accept':ti,ab OR wta:ti,ab OR cvm:ti,ab OR 'contingent valuation method':ti,ab OR 'contingent valuation survey':ti,ab OR 'cost benefit analysis':ti,ab OR 'economic evaluation':ti,ab	188