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Epidemiology (Cambridge, Mass.)|July 3, 2004
Incorporating group-level exposure information in case-control studies with missing data on dichotomous exposuresUlf Strömberg, Jonas BjörkInternational Journal of Epidemiology|March 27, 2002
Effects of systematic exposure assessment errors in partially ecologic case-control studiesJonas Björk, Ulf StrömbergEpidemiology (Cambridge, Mass.)|July 3, 2002
Estimating attributable fraction in partially ecologic case-control studiesJonas Björk, Ulf StrömbergScandinavian Journal of Work, Environment & Health|July 8, 2005
Model specification and unmeasured confounders in partially ecologic analyses based on group proportions of exposedJonas Björk, Ulf StrömbergEnvironmental Health : a Global Access Science Source|November 9, 2007
Efficiency of two-phase methods with focus on a planned population-based case-control study on air pollution and strokeAnna Oudin, Jonas Björk, Ulf StrömbergBMC Public Health|December 18, 2020
Can the validity of a cohort be improved by reweighting based on register data? Evidence from the Swedish MDC studyAnton Nilsson, Carl Bonander, Ulf Strömberg, et al.European Journal of Epidemiology|August 18, 2019
Assessing heterogeneous effects and their determinants via estimation of potential outcomesAnton Nilsson, Carl Bonander, Ulf Strömberg, et al.BMC Medical Research Methodology|October 11, 2023
Can non-participants in a follow-up be used to draw conclusions about incidences and prevalences in the full population invited at baseline? An investigation based on the Swedish MDC cohortAnton Nilsson, Jonas Björk, Ulf Strömberg, et al.BMC Medical Research Methodology|June 16, 2020
A novel framework for classification of selection processes in epidemiological researchJonas Björk, Anton Nilsson, Carl Bonander, et al.International Journal of Epidemiology|November 22, 2020
A directed acyclic graph for interactionsAnton Nilsson, Carl Bonander, Ulf Strömberg, et al.Pageof 43