摘要：This paper summarizes the salient features of the ecologic method, with emphasis on its application in the study of environmental health. Various types of ecologic design are described, with examples. Finally, the main advantages and disadvantages are indicated. A companion paper discusses the methodology of ecologic designs in more detail and describes a census of data sets with potential suitability for the ecologic study of water quality and human health. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (967K), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 61 62 63 64 65
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