RETROSPECTIVE STUDIES
\ɹˌɛtɹə͡ʊspˈɛktɪv stˈʌdɪz], \ɹˌɛtɹəʊspˈɛktɪv stˈʌdɪz], \ɹ_ˌɛ_t_ɹ_əʊ_s_p_ˈɛ_k_t_ɪ_v s_t_ˈʌ_d_ɪ_z]\
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Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.
By DataStellar Co., Ltd
