Results 211 to 220 of about 566,677 (266)

Spatial distribution and clustering of multidrug-resistant tuberculosis in Uganda: a nationwide ecological study (2014-2023)

open access: yes
Akello SR   +16 more
europepmc   +1 more source

Soil selenium and oesophageal cancer incidence in China: a large ecological study of population-based cancer registry data. [PDF]

open access: yesInt J Health Geogr
Xie S   +8 more
europepmc   +1 more source

Ecological Studies and the Ecological Fallacy

AAP Grand Rounds, 2001
Ecological studies involve groups of people, rather than individuals, as the units of study. Since group data are easier to obtain (eg, census or other national survey information), these studies are often used to generate hypotheses for further study.
openaire   +1 more source

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