The Policy, Research, and Extemal Affairs Complex distuibutes PRE Working Papers todisseminate the findings of work in progress and to enoourage the exchange of ideas among Bank staff and aU others interested in development issues. These papers catry the names of the authors, reflect only their views, and should he used and cited accordingly. The findings. interpretations, and conclusions are the authors' own. They should not he attributed to the World Bank. its Board of Directors. its management, or any of its member countries P ub lic D is cl os ur e A ut ho riz ed
No takes yet. Share an insight, caveat, or question.
Cheryl W. Gray (1991) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: