TY - EJOUR T1 - Quality Control in Hematology by Means of Values from Patients AU - Rutten, W. P. F. AU - Scholtis, R. J. H. AU - Schmidt, N. A. AU - Oers, R. J. M. van PY - 1975 LA - und PB - Kooperation de Gruyter JO - Clinical Chemistry and Laboratory Medicine DO - 10.1515/cclm.1975.13.9.395 ER -