title: Enhancing Clinical Study Retention Rates to Avoid Follow-up Bias: How Do We Keep Our Study Participants from "The Land of the Lost"?
authors.affiliation: Spectrum Research, Inc., Tacoma, Washington, United States.
authors.forename: Daniel C
authors.initials: DC
authors.lastname: Norvell
authors.affiliation: Spectrum Research, Inc., Tacoma, Washington, United States.
authors.forename: Joseph R
authors.initials: JR
authors.lastname: Dettori
authors.affiliation: Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington, United States.
authors.forename: Jens R
authors.initials: JR
authors.lastname: Chapman