title: Printed signatures and response rates.
authors.forename: M M
authors.initials: MM
authors.lastname: Koo
authors.forename: T E
authors.initials: TE
authors.lastname: Rohan
mesh_terms: D000293:Adolescent; D002648:Child; D015331:Cohort Studies; D003625:Data Collection / Q000379:methods*; D005260:Female; D006302:Health Services Research; D006306:Health Surveys; D006801:Humans; D008572:Menarche / Q000502:physiology; D011177:Postal Service; D011247:Pregnancy