TY  - RPRT
TI  - [Coagulation screening: P-APT-time (APTT) -- new reagents, improved method?].
AU  - I Norén
AU  - S Thunell
AU  - N Tryding
PY  - 1977
UR  - https://pubmed.ncbi.nlm.nih.gov/865178/
ID  - 865178
ER  -