TY  - BOOK
AU  - EL-NAGEH M. M. ...et al. 
TI  - Basics of Quality Assurance: for Intermediate and Peripheral Laboratories 
SN  - 9290211601
U1  - 616.87 22
PY  - 1992///.
CY  - Egypt . : 
PB  - World Health Organization . ; 
KW  - 1. Laboratories - Standards - handbooks   2. Quality assurance, health care
N1  - includes bibliographical references and index
ER  -