Health care data, the epidemiologist's sand: comments on the quantity and quality of data.

Autor: Hierholzer Jr., Walter J.1, Hierholzer, W J Jr2 (AUTHOR)
Zdroj: American Journal of Medicine. 9/16/91, Vol. 91 Issue 3B, p21S-26S. 6p. 2 Charts.
Databáze: Academic Search Ultimate