title: Overcoming barriers to recruitment in health research: concerns of potential participants need to be dealt with.
authors.forename: Iain K
authors.initials: IK
authors.lastname: Crombie
authors.forename: Marion E T
authors.initials: ME
authors.lastname: McMurdo
authors.forename: Linda
authors.initials: L
authors.lastname: Irvine
authors.forename: Brian
authors.initials: B
authors.lastname: Williams
mesh_terms: D000368:Aged / Q000523:psychology*; D000369:Aged, 80 and over; D001294:Attitude to Health; D035843:Biomedical Research; D015444:Exercise / Q000523:psychology*; D006801:Humans; D018579:Patient Selection; D035842:Research Subjects