| Literature DB >> 4051077 |
Abstract
This analysis of data from the Physicians' Practice Survey indicates that estimates made from early responders closely approximate those obtained at the conclusion of a longer field period.Mesh:
Year: 1985 PMID: 4051077 PMCID: PMC1646709 DOI: 10.2105/ajph.75.11.1338
Source DB: PubMed Journal: Am J Public Health ISSN: 0090-0036 Impact factor: 9.308