TY  - RPRT
TI  - Prothrombin time standardization and temperature problems.
AU  - A Uldall
PY  - 1980
DO  - 10.1016/0009-8981(80)90228-4
UR  - https://pubmed.ncbi.nlm.nih.gov/7389115/
ID  - 7389115
ER  -