| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5122655 | Public Health | 2017 | 4 Pages |
Abstract
â¢Despite various limitations, ecological studies merit interest in public health.â¢Selection bias is an important under-recognized problem in ecological studies.â¢A random selection from a well-defined population of countries should be warranted.
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Authors
V. Rousson, P.C. Rosselet, F. Paccaud,