TY  - RPRT
TI  - A collaborative calibration study of reference materials for thromboplastins.
AU  - J Hermans
AU  - A M van den Besselaar
AU  - E A Loeliger
AU  - E A van der Velde
PY  - 1983
UR  - https://pubmed.ncbi.nlm.nih.gov/6648892/
ID  - 6648892
ER  -