| Literature DB >> 18797226 |
Abstract
Characteristics of effective approaches and flaws in study design.Entities:
Mesh:
Year: 2008 PMID: 18797226 DOI: 10.1097/01.NAJ.0000336415.60495.34
Source DB: PubMed Journal: Am J Nurs ISSN: 0002-936X Impact factor: 2.220