NYBERG A. /red./ QUALITY 296,575 Quality control in clinical chemistry.: efforts tp find an efficient strategy / ed. by C. H de Verdier,T Aronsson and A. Nyberg ; the Nordic Clinical -Chemistry Project (NORDKEM) / Helsinki, Finland. -[Oslo : Blackwell Scientific Publications; , 1984]. - 241 s. : il. wykr. ; 25 cm The Scandinavian Journal of Clinical and Laboratory Investigation, ISSN 0085-89; 591X ; suppl. 172 ISBN 951-46-7525-8