title: A comparison of work-sampling and time-and-motion techniques for studies in health services research.
authors.forename: E
authors.initials: E
authors.lastname: Oddone
authors.forename: D L
authors.initials: DL
authors.lastname: Simel
mesh_terms: D015982:Bias; D006302:Health Services Research / Q000379:methods*; D006801:Humans; D013996:Time and Motion Studies