#	Searches	Results
1	Vaccination Refusal/	316
2	Anti Vaccination Movement/	69
3	(anti vaccin* or antivaccin*).ti,ab,kf.	658
4	or/1‐3	980
5	exp Vaccines/	226948
6	Vaccination/	80791
7	Mass Vaccination/	3008
8	Immunization/	50518
9	Immunization Programs/	10721
10	or/5‐9	289042
11	"Patient Acceptance of Health Care"/	46279
12	Refusal to Participate/	617
13	Treatment Refusal/	11795
14	Health Knowledge, Attitudes, Practice/	110420
15	Attitude to Health/	83226
16	or/11‐15	234096
17	10 and 16	7696
18	((vaccin* or immunis* or immuniz*) and (attitude* or perspective* or perception* or belief* or concern* or view or views or accept* or hesita* or refus* or reject* or abstain* or declin* or resist* or object* or deny* or denier* or denial* or decision*)).ti.	7024
19	((vaccin* or immunis* or immuniz*) adj2 (attitude* or perspective* or perception* or belief* or concern* or view or views or accept* or hesita* or refus* or reject* or abstain* or declin* or resist* or object* or deny* or denier* or denial* or decision*)).ab.	7240
20	((vaccin* or immunis* or immuniz*) adj2 (attitude* or perspective* or perception* or belief* or concern* or view or views or accept* or hesita* or refus* or reject* or abstain* or declin* or resist* or object* or deny* or denier* or denial* or decision*)).kf.	619
21	((vaccination or immunisation or immunization) adj (behavior? or behaviour?)).ti,ab,kf.	288
22	or/18‐21	12381
23	exp Vaccines/	226948
24	Vaccination/	80791
25	Mass Vaccination/	3008
26	Vaccination Coverage/	1029
27	Immunization/	50518
28	Immunization Programs/	10721
29	(vaccin* or immunis* or immuniz*).ti,ab,kf.	391173
30	or/23‐29	459912
31	Child/	1677091
32	Child,Preschool/	912085
33	Infant/	786913
34	Infant, Newborn/	600946
35	(child* or infant* or infancy or newborn* or new born* or neonat* or neo nat* or postnatal* or post natal* or baby* or babies or toddler*).ti,ab,kf.	2051244
36	or/31‐35	3154084
37	Parents/	63122
38	Mothers/	43198
39	Fathers/	8980
40	Parenting/	16530
41	Parental Consent/	3242
42	(parent* or mother* or father* or informal caregiver*).ti,ab,kf.	613789
43	or/37‐42	639707
44	30 and 36 and 43	13603
45	17 or 22 or 44	27204
46	limit 45 to "qualitative (maximizes specificity)"	1098
47	45 and (Qualitative Research/ or Interviews as Topic/)	825
48	45 and (qualitative or group discussion? or focus group? or themes).ti,ab,kf.	1361
49	or/46‐48	1753
50	4 or 49	2670
51	limit 50 to yr=1974‐current	2612