title: Sources of bias in research design.
authors.affiliation: College of Nursing, University of Nebraska Medical Center, Omaha, NE, USA. cbthompson@unmc.edu
authors.forename: Cheryl Bagley
authors.initials: CB
authors.lastname: Thompson
authors.forename: Edward A
authors.initials: EA
authors.lastname: Panacek
mesh_terms: D015982:Bias; D006801:Humans; D015203:Reproducibility of Results; D012107:Research Design; D014481:United States