Missing data 12 human 7 missing data 7 Humans 4 article 4 simulation 4 Article 3 Imputation 3 Air pollution 2 History of engineering and technology 2 Learning systems 2 MICE 2 Medicine 2 Philosophy 2 Research Design 2 Sample Size 2 Single imputation 2 aged 2 algorithm 2 case study 2 female 2 imputation 2 information processing 2 learning 2 longitudinal study 2 male 2 methodology 2 sample size 2 Adult 1 Age Factors 1