Volume 5; 2008 Analytic Perspectives Flexible Two-Phase studies for rare exposures: Feasibility, planning and efficiency issues of a new variant PMCID: PMC2602593 Using the National Health Interview Survey to understand and address the impact of tobacco in the United States: past perspectives and future considerations PMCID: PMC2627846 Methodology Feasibility of an automated telephone survey to enable prospective monitoring of subjects whose confidentiality is paramount: a four-week cohort study of partner violence recurrence after Emergency Department discharge PMCID: PMC2262893 Partitioning the population attributable fraction for a sequential chain of effects PMCID: PMC2572052 Research | ||