title: How to avoid missing data and the problems they pose: design considerations.
authors.affiliation: US Department of Veterans Affairs Cooperative Studies Program Coordinating Center, Palo Alto VA Health Care System, Palo Alto, CA, USA.
authors.forename: Julia Y
authors.initials: JY
authors.lastname: Lin
authors.affiliation: US Department of Veterans Affairs Cooperative Studies Program Coordinating Center, Palo Alto VA Health Care System, Palo Alto, CA, USA ; Department of Health Research and Policy, Stanford University, Stanford, CA, USA.
authors.forename: Ying
authors.initials: Y
authors.lastname: Lu
authors.affiliation: Department of Biostatistics and Computational Biology, University of Rochester, NY, USA.
authors.forename: Xin
authors.initials: X
authors.lastname: Tu